{"title":"Heaters \u0026 Chillers","description":"\u003cp\u003eTemperature control for freshwater tanks. Submersible heaters and thermostats from Fluval, Marina, Bioscape and Juwel hold tropical species in range, and Teco chillers bring temperature down for cold water species and for tanks that climb too high through a Queensland summer.\u003c\/p\u003e\n\u003cp\u003eMost tropical community fish sit comfortably between 24 and 26 degrees Celsius. Goldfish, white cloud minnows and axolotls are cold water species and are stressed by tropical temperatures, with axolotls in particular needing to stay cool.\u003c\/p\u003e\n\u003cp\u003eSize the heater to the tank volume and the difference between room temperature and target temperature. On larger tanks two smaller heaters are safer than one large one, since a single stuck heater can cook a tank.\u003c\/p\u003e\n\u003cp\u003eShipped Australia wide from our North Lakes store in Brisbane.\u003c\/p\u003e","products":[{"product_id":"marina-floating-glass-thermometer","title":"Marina Floating Glass Thermometer","description":"\u003cp\u003e\u003cstrong\u003eA simple glass thermometer that floats or sticks to the glass.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Marina Floating Glass Thermometer is a liquid-filled glass thermometer for freshwater and marine aquariums. It's designed to float upright in the water, and comes with a suction cup so you can fix it to the inside of the glass instead if you'd rather it stayed in one spot.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual scale\u003c\/strong\u003e — reads in both Celsius and Fahrenheit, so you can check the temperature at a glance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety zone band\u003c\/strong\u003e — a marked zone on the scale shows the general temperature range suited to most tropical fish.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFloat or stick\u003c\/strong\u003e — works loose and floating, or held against the glass with the included suction cup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFresh or marine\u003c\/strong\u003e — suits both freshwater and saltwater aquariums.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpec\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eMarina (Hagen)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eLiquid-filled glass thermometer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eFloats freely, or suction-mounts to glass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eScale\u003c\/td\u003e\n\u003ctd\u003eCelsius and Fahrenheit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWater type\u003c\/td\u003e\n\u003ctd\u003eFreshwater and saltwater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eAA3821\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eHagen does not publish an exact numeric temperature range for this model — the scale carries a marked safety zone rather than printed minimum and maximum figures.\u003c\/p\u003e\n\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEveryday temperature checks in freshwater and marine tanks.\u003c\/li\u003e\n\u003cli\u003eNot a substitute for a digital controller probe if you're relying on the reading to run a heater or chiller automatically — this is a visual, check-by-eye thermometer only.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\n\u003cp\u003eWipe algae off the glass occasionally so the scale stays easy to read. Being glass, handle it gently — it isn't a scraper for the tank.\u003c\/p\u003e\n\u003ch3\u003eGoes well with\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eA digital thermometer or controller, if you want a continuously logged reading rather than a glance-and-check one.\u003c\/li\u003e\n\u003cli\u003eAn algae scraper, for keeping the glass around the thermometer clean.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\n\u003cp\u003eCovered by Marina's standard warranty against manufacturing defects, in addition to your rights under the Australian Consumer Law. Standard freight applies.\u003c\/p\u003e\n\u003ch3\u003eCommon questions\u003c\/h3\u003e\n\u003ch4\u003eDoes it need to float, or should I stick it to the glass?\u003c\/h4\u003e\n\u003cp\u003eEither works. Floating is simplest; the suction cup is there if you'd rather it stayed in a fixed viewing spot.\u003c\/p\u003e\n\u003ch4\u003eWill it work in a saltwater tank?\u003c\/h4\u003e\n\u003cp\u003eYes — Marina markets this thermometer for both freshwater and saltwater use.\u003c\/p\u003e\n\u003ch4\u003eHow accurate is the safety zone marking?\u003c\/h4\u003e\n\u003cp\u003eIt's a general guide to the range most tropical fish are kept in, not a precise reading — for critical applications, pair it with a digital thermometer.\u003c\/p\u003e","brand":"Marina","offers":[{"title":"Default Title","offer_id":55242216341795,"sku":"AA3821","price":3.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/marina-floating-glass-thermo-43877843108131.webp?v=1790239539"},{"product_id":"marina-vertical-lcd-thermometer-10cm-19-30degrees","title":"Marina Vertical LCD Thermometer 10cm 19 - 30degrees","description":"\u003cp\u003e\u003cstrong\u003eA temperature reading you can take from across the room, with nothing inside the tank.\u003c\/strong\u003e The Marina Vertical LCD Thermometer is a 10 cm adhesive strip that sticks to the outside of the aquarium glass and reads from 19 to 30 °C. Because it mounts externally there is no suction cup to fail, nothing for a cichlid to dislodge, and no glass to break in the tank. Mounted vertically, it fits neatly in the corner of a panel rather than taking up viewing width.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eReads 19 to 30 °C\u003c\/strong\u003e — covers the normal range for tropical community, marine and most planted tanks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounts outside the glass\u003c\/strong\u003e — nothing in the water to knock loose, clean around, or break.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10 cm vertical strip\u003c\/strong\u003e — sits in a corner of the panel instead of across the viewing area.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNothing to power or calibrate\u003c\/strong\u003e — no battery, no probe, no cable through the rim.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eMarina\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eType\u003c\/th\u003e\n\u003ctd\u003eAdhesive LCD strip thermometer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eOrientation\u003c\/th\u003e\n\u003ctd\u003eVertical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eLength\u003c\/th\u003e\n\u003ctd\u003e10 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eTemperature range\u003c\/th\u003e\n\u003ctd\u003e19 °C to 30 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eAdhesive, external glass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eWater type\u003c\/th\u003e\n\u003ctd\u003eFreshwater and marine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eSKU\u003c\/th\u003e\n\u003ctd\u003eBA9131\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003eMarina does not currently publish a stated accuracy or scale increment for this thermometer, so neither figure is claimed here. Treat it as an at-a-glance check rather than a laboratory reading.\u003c\/p\u003e\n\u003ch3\u003eWill it suit my tank?\u003c\/h3\u003e\n\u003cp\u003eThe 19–30 °C range is the thing to check before you buy. A tropical community tank at 24–26 °C or a reef at 25–26 °C sits comfortably in the middle of the scale.\u003c\/p\u003e\n\u003cp\u003eTwo cases fall outside it. A coldwater goldfish tank in a Brisbane winter can drop below 19 °C, and any tank in an un-airconditioned Queensland room can pass 30 °C in summer — which is exactly when you most want a number. Above or below the scale the strip simply stops giving you a reading, so if summer overheating is the problem you are trying to watch, use a digital thermometer with a wider range as well.\u003c\/p\u003e\n\u003ch3\u003eWhich Marina thermometer do I need?\u003c\/h3\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"col\"\u003eThermometer\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eMounting\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eReads from\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e\u003ca href=\"\/products\/marina-vertical-lcd-thermometer-10cm-19-30degrees\"\u003eMarina Vertical LCD Thermometer\u003c\/a\u003e\u003c\/th\u003e\n\u003ctd\u003eAdhesive, outside the glass\u003c\/td\u003e\n\u003ctd\u003eOutside the tank, through the glass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e\u003ca href=\"\/products\/marina-floating-glass-thermometer\"\u003eMarina Floating Glass Thermometer\u003c\/a\u003e\u003c\/th\u003e\n\u003ctd\u003eFree floating\u003c\/td\u003e\n\u003ctd\u003eIn the water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003e\u003ca href=\"\/products\/marina-suction-glass-floating-thermometer\"\u003eMarina Suction Glass Floating Thermometer\u003c\/a\u003e\u003c\/th\u003e\n\u003ctd\u003eSuction cup, inside the glass\u003c\/td\u003e\n\u003ctd\u003eIn the water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch3\u003eSetup and use\u003c\/h3\u003e\n\u003cp\u003eClean and dry the outside of the glass first. Adhesive strips do not stick to a salt-filmed or damp panel, and once positioned they are difficult to move without damaging the strip.\u003c\/p\u003e\n\u003cp\u003ePosition it on a panel away from direct sunlight, room heaters, air conditioning vents and the aquarium light, and not directly opposite the heater. Any of those will pull the reading away from the true water temperature.\u003c\/p\u003e\n\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eSuitable for\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGlass aquariums running between 19 and 30 °C\u003c\/li\u003e\n\u003cli\u003eTanks with boisterous fish that dislodge in-tank thermometers\u003c\/li\u003e\n\u003cli\u003eA second, at-a-glance check alongside a heater's own thermostat\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNot suitable for\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eColdwater tanks that sit below 19 °C, or tanks you expect to exceed 30 °C\u003c\/li\u003e\n\u003cli\u003eThick-walled or heavily insulated tanks, where the glass lags behind the water\u003c\/li\u003e\n\u003cli\u003eSituations that need an exact figure, such as acclimatising sensitive livestock or diagnosing a heater fault\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eGoes well with\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/marina-floating-glass-thermometer\"\u003eMarina Floating Glass Thermometer\u003c\/a\u003e — an in-water second opinion when the strip reading looks wrong\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/marina-black-fish-net\"\u003eMarina Black Fish Net\u003c\/a\u003e — for moving fish once temperatures are matched\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/marina-fish-net-breeder-box\"\u003eMarina Fish Net Breeder Box\u003c\/a\u003e — small volumes swing in temperature fastest and are worth watching\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/marina-airstone-2-5cm-card\"\u003eMarina Air Stone 2.5 cm\u003c\/a\u003e — extra aeration matters most as water warms and holds less oxygen\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\n\u003cp\u003eMarina does not publish a fixed warranty term for this thermometer. Anything the manufacturer offers applies in addition to your rights under the Australian Consumer Law, which are not limited by anything stated on this page.\u003c\/p\u003e\n\u003cp\u003eShips as a standard parcel item. No dangerous goods or oversize handling applies.\u003c\/p\u003e\n\u003ch3\u003eCommon questions\u003c\/h3\u003e\n\u003ch4\u003eDoes a stick-on thermometer read the room or the water?\u003c\/h4\u003e\n\u003cp\u003eIt reads the glass, which sits between the two. On a normal glass aquarium the glass tracks the water closely, provided the strip is not in sunlight, above a heat source, or in the path of an air conditioner.\u003c\/p\u003e\n\u003ch4\u003eCan I move the strip after sticking it on?\u003c\/h4\u003e\n\u003cp\u003eUsually not without damaging it. Decide the position before you press it down, and clean and dry the glass first.\u003c\/p\u003e\n\u003ch4\u003eWhat happens if my tank goes above 30 °C?\u003c\/h4\u003e\n\u003cp\u003eThe scale simply runs out and no segment lights. That is a real limitation in a Queensland summer, so pair it with a wider-range digital thermometer if overheating is your concern.\u003c\/p\u003e\n\u003ch4\u003eWill it work on an acrylic tank?\u003c\/h4\u003e\n\u003cp\u003eIt will adhere, but acrylic conducts heat differently from glass and the reading is less reliable. On acrylic, an in-water thermometer is the better choice.\u003c\/p\u003e","brand":"Marina","offers":[{"title":"Default Title","offer_id":55242218668323,"sku":"BA9131","price":4.75,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/marina-vertical-lcd-thermome-10268545155363-1-dq.webp?v=1790372841"},{"product_id":"marina-suction-glass-floating-thermometer","title":"Marina Suction Glass Floating Thermometer","description":"\u003cp\u003e\u003cstrong\u003eA glass thermometer you can fix straight to the aquarium glass.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Marina Suction Glass Floating Thermometer is a liquid-filled glass thermometer for freshwater and marine tanks, supplied with a suction cup so it can be mounted against the glass at eye level, or left to float freely if you prefer.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuction-cup mount\u003c\/strong\u003e — holds the thermometer against the glass so it doesn't drift around the tank.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual scale\u003c\/strong\u003e — Celsius and Fahrenheit on the one glass tube.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety zone band\u003c\/strong\u003e — a marked zone shows the general range suited to most tropical fish.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFresh or marine\u003c\/strong\u003e — suits both freshwater and saltwater setups.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpec\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eMarina (Hagen)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eLiquid-filled glass thermometer with suction mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eScale\u003c\/td\u003e\n\u003ctd\u003eCelsius and Fahrenheit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWater type\u003c\/td\u003e\n\u003ctd\u003eFreshwater and saltwater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eBA9130\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eAs with Marina's other glass thermometers, Hagen doesn't publish exact minimum and maximum numeric readings for this model — the printed safety zone stands in for a numeric range.\u003c\/p\u003e\n\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFixed-position temperature checks where you don't want the thermometer drifting on the surface.\u003c\/li\u003e\n\u003cli\u003eNot a replacement for a digital probe thermometer if you need a continuous or logged reading.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\n\u003cp\u003ePress the suction cup onto clean glass for the best hold, and re-wet it if it stops gripping. Wipe algae off the tube occasionally so it stays easy to read.\u003c\/p\u003e\n\u003ch3\u003eGoes well with\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAn algae scraper or pad, to keep the glass around the mount clean.\u003c\/li\u003e\n\u003cli\u003eA digital or LCD thermometer, if you'd like a second, continuously-displayed reading alongside this one.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\n\u003cp\u003eCovered by Marina's standard warranty against manufacturing defects, in addition to your rights under the Australian Consumer Law. Standard freight applies.\u003c\/p\u003e\n\u003ch3\u003eCommon questions\u003c\/h3\u003e\n\u003ch4\u003eCan I still let it float instead of using the suction cup?\u003c\/h4\u003e\n\u003cp\u003eYes — the suction cup is optional. Left unattached, the thermometer floats upright the same way Marina's other glass thermometers do.\u003c\/p\u003e\n\u003ch4\u003eIs this the same thermometer as Marina's other floating glass thermometer?\u003c\/h4\u003e\n\u003cp\u003eIt's the same type of liquid-filled glass thermometer from the Marina range, sold here with the suction mount included. If you're unsure which listing you need, contact us and we'll confirm stock and packaging before you order.\u003c\/p\u003e\n\u003ch4\u003eWill it work in a saltwater tank?\u003c\/h4\u003e\n\u003cp\u003eYes — it's suited to both freshwater and marine aquariums.\u003c\/p\u003e","brand":"Marina","offers":[{"title":"Default Title","offer_id":55242218701091,"sku":"BA9130","price":4.5,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/marina-suction-glass-floatin-46120724594979.webp?v=1790239540"},{"product_id":"teco-tk150-chiller","title":"Teco TK150 Chiller","description":"\u003cp\u003e\u003cstrong\u003eKeeps a smaller tank from overheating through summer.\u003c\/strong\u003e The Teco TK150 is a compact aquarium chiller rated to 150 litres, using a titanium heat exchanger and R134a refrigerant to hold your set temperature as the room warms up.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTitanium heat exchanger\u003c\/strong\u003e — safe for freshwater and saltwater, resistant to corrosion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDigital thermostat\u003c\/strong\u003e — 5–35°C set-point range at 0.1°C resolution, with a 0.5°C differential.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact footprint\u003c\/strong\u003e — sized for nano and small-to-mid tanks rather than full systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIn-line plumbing\u003c\/strong\u003e — runs off your existing return or a small dedicated pump.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eRated tank volume\u003c\/th\u003e\n\u003ctd\u003eUp to 150L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCooling power draw\u003c\/th\u003e\n\u003ctd\u003e150W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRefrigerant\u003c\/th\u003e\n\u003ctd\u003eR134a\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensions (W x D x H)\u003c\/th\u003e\n\u003ctd\u003e215 x 361 x 315mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003eApprox. 11.5kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum flow rate\u003c\/th\u003e\n\u003ctd\u003e400L\/h\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWater connection\u003c\/th\u003e\n\u003ctd\u003e1\/2in (12mm ID)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSupply\u003c\/th\u003e\n\u003ctd\u003e230-240V, 50Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSet-point range\u003c\/th\u003e\n\u003ctd\u003e5°C to 35°C, 0.1°C resolution\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003ePerformance — cooling capacity by ambient temperature\u003c\/h3\u003e\n\u003cp\u003eTeco rates the TK150 against one published condition: water held at 25°C, room ambient at 30°C, with a heat load of about 0.5 watts per litre. Under that condition it holds its full 150L rating at temperature. Teco does not publish a broader curve of capacity across other ambient temperatures for this model — in a hotter room, or with a heavier lighting load than the 0.5 W\/L test condition, expect less than the full rated volume to be held at temperature.\u003c\/p\u003e\n\u003cp\u003eIndependent bench testing (not a Teco figure) recorded a TK150 pulling a 250–270L planted tank from 29.8°C to 27.5°C in around three hours — a data point beyond its own 150L rating, and one that came with a return pump and LED lighting rather than a heavier heat load. It's useful context for what the unit can do stretched, but the manufacturer's own rating is 150L, and that's the figure to plan a purchase around.\u003c\/p\u003e\n\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuitable for:\u003c\/strong\u003e fresh and saltwater aquariums up to 150L with a standard lighting and pump load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e running with no water flow through the unit — it needs at least 400L\/h through it to cool safely and effectively. Not the right size for anything meaningfully over 150L with a full lighting rig; step up to the TK500 range instead.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSafety\u003c\/h3\u003e\n\u003cp\u003eMains-powered, 230-240V, 50Hz. Install on an RCD-protected circuit as with any aquarium electrical equipment. The refrigerant circuit is sealed and not user-serviceable.\u003c\/p\u003e\n\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\n\u003cp\u003eKeep the intake and exhaust clear of dust and away from walls to maintain airflow across the heat exchanger — restricted airflow reduces cooling and increases running time.\u003c\/p\u003e\n\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\n\u003cp\u003eCovered by the manufacturer's warranty, in addition to your rights under Australian Consumer Law. Ships as a bench-top appliance at standard parcel rates.\u003c\/p\u003e\n\u003ch3\u003eCommon questions\u003c\/h3\u003e\n\u003ch4\u003eWhat does the 150L rating actually assume?\u003c\/h4\u003e\n\u003cp\u003eWater at 25°C in a 30°C room, with a heat load of about 0.5 watts per litre from lighting and pumps. A hotter room or heavier lighting will reduce how much volume it can hold at temperature.\u003c\/p\u003e\n\u003ch4\u003eCan I run this on a bigger tank if I don't push it hard?\u003c\/h4\u003e\n\u003cp\u003eYou can, but you're outside the manufacturer's rating and results will vary with your lighting, ambient temperature and flow. If your tank is meaningfully over 150L, the TK500 is the sized-for-purpose option.\u003c\/p\u003e\n\u003ch4\u003eDoes it need a dedicated pump?\u003c\/h4\u003e\n\u003cp\u003eIt needs at least 400L\/h of flow through it — that can come from your existing return pump if it has the spare capacity, or a small dedicated pump.\u003c\/p\u003e\n\u003ch4\u003eIs R134a an issue to use today?\u003c\/h4\u003e\n\u003cp\u003eNo — R134a remains a normal refrigerant for this class of chiller. The sealed circuit means you never handle it directly during normal use.\u003c\/p\u003e","brand":"Teco","offers":[{"title":"Default Title","offer_id":55242245734691,"sku":"AA2153","price":945.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/teco-tk150-chiller-43875862315299.webp?v=1790239540"},{"product_id":"fluval-digital-aquarium-thermometer","title":"Fluval Digital Aquarium Thermometer","description":"\u003cp\u003e\u003cstrong\u003eNo probes, no cables — just stick it on the glass and read both temperatures at once.\u003c\/strong\u003e The Fluval Digital Aquarium Thermometer is a 2-in-1 wireless unit that adheres to the outside of your tank below the waterline and reads water temperature through the glass, alongside the ambient room temperature, on a single LCD display.\u003c\/p\u003e\n\u003cp\u003eIt suits freshwater and saltwater aquariums and is accurate to within 1°C (2°F) of the true reading. Because there's no submersible probe or cable to route through the hood, it's a tidy option for anyone who doesn't want more hardware sitting inside the tank.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-in-1 reading\u003c\/strong\u003e — shows water temperature (sensed through the glass) and ambient room temperature on the one display.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo probe, no cable\u003c\/strong\u003e — adhesive-mounted to the outside of the aquarium glass, so nothing sits in the water.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge LCD display\u003c\/strong\u003e — switches between °C and °F.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccurate to within 1°C (2°F)\u003c\/strong\u003e of actual temperature.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery powered\u003c\/strong\u003e — runs on a single LR44 cell, included.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpec\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eFluval\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003e2-in-1 wireless digital aquarium thermometer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003eWithin 1°C (2°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay\u003c\/td\u003e\n\u003ctd\u003eLCD, switchable °C\/°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eAdhesive, exterior glass, below waterline\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e1 x LR44 battery (included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWater suitability\u003c\/td\u003e\n\u003ctd\u003eFreshwater and saltwater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eAA3193\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eFluval hasn't published an exact temperature range, display resolution, unit dimensions or a specific warranty term for this model, so those fields are left off rather than guessed. Ask us if you need any of them confirmed before buying.\u003c\/p\u003e\n\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSuitable for freshwater and saltwater display tanks where a clean, external, wireless read-out is preferred over an in-tank probe.\u003c\/li\u003e\n\u003cli\u003eNot the right choice if you specifically want a submersible probe thermometer that sits in the water — this unit reads through the glass from the outside instead. Fluval also sells a separate submersible digital thermometer if that's what you need.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\n\u003cp\u003eWipe the display and adhesive pad clean of any salt creep or algae film during routine tank maintenance so the reading stays accurate. Replace the LR44 battery when the display dims or drops out.\u003c\/p\u003e\n\u003ch3\u003eGoes well with\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eA Fluval aquarium heater, so the thermometer and heater's own thermostat can be cross-checked against each other.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\n\u003cp\u003eCovered by your rights under Australian Consumer Law if it arrives faulty, damaged or not as described. Fluval hasn't published a specific extended warranty term for this model on the sources we could check — ask us if you'd like this confirmed before you buy.\u003c\/p\u003e\n\u003ch3\u003eCommon questions\u003c\/h3\u003e\n\u003ch4\u003eDoes this have a probe that goes in the water?\u003c\/h4\u003e\n\u003cp\u003eNo. It's a wireless 2-in-1 design — the whole unit sticks to the outside of the glass and reads the water temperature through it, so nothing sits in the tank.\u003c\/p\u003e\n\u003ch4\u003eCan it read the room temperature as well as the tank?\u003c\/h4\u003e\n\u003cp\u003eYes — that's what \"2-in-1\" refers to. It shows water temperature and ambient room temperature on the same display.\u003c\/p\u003e\n\u003ch4\u003eIs it accurate enough to rely on?\u003c\/h4\u003e\n\u003cp\u003eFluval states an accuracy of within 1°C (2°F) of the true reading, which is a reasonable margin for day-to-day monitoring rather than precision dosing or breeding work.\u003c\/p\u003e\n\u003ch4\u003eWill it work on a saltwater tank?\u003c\/h4\u003e\n\u003cp\u003eYes, Fluval markets it for both freshwater and saltwater use.\u003c\/p\u003e\n\u003ch4\u003eWhat battery does it use?\u003c\/h4\u003e\n\u003cp\u003eA single LR44 cell.\u003c\/p\u003e","brand":"Fluval","offers":[{"title":"Default Title","offer_id":55242250027299,"sku":"AA3193","price":25.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/fluval-digital-aquarium-ther-43875409658147.webp?v=1790236364"},{"product_id":"juwel-digital-thermometer-3-0","title":"Juwel Digital Thermometer 3.0","description":"\u003cp\u003e\u003cstrong\u003eA clear read of your tank's actual temperature, from outside the hood.\u003c\/strong\u003e The Juwel Digital Thermometer 3.0 clips onto the aquarium cover flap and reads the water through a 100 cm wired sensor, so you get an accurate number without reaching into the tank or squinting at a stick-on strip.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWired sensor, not a strip\u003c\/strong\u003e — a 100 cm cable carries the probe into the water while the display sits on the outside of the cover flap.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge digital display\u003c\/strong\u003e — an easy-to-read screen, clearer at a glance than an analogue dial or adhesive strip thermometer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExternal mounting\u003c\/strong\u003e — the display clips to the cover flap from outside, so there's nothing inside the tank to catch on nets or décor beyond the thin sensor cable.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBattery powered\u003c\/strong\u003e — runs on a single AA battery, no wiring into your power board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits any aquarium\u003c\/strong\u003e — not tied to a specific Juwel tank; the cable length and clip mount work on cabinets and hoods generally.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSKU\u003c\/th\u003e\n\u003ctd\u003eAA3413\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBarcode\u003c\/th\u003e\n\u003ctd\u003e4022573857030\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDisplay\u003c\/th\u003e\n\u003ctd\u003eDigital, external mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSensor cable length\u003c\/th\u003e\n\u003ctd\u003e100 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower\u003c\/th\u003e\n\u003ctd\u003e1 x AA battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMounting\u003c\/th\u003e\n\u003ctd\u003eClips to the cover flap, sensor sits in the water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003ctd\u003eApprox. 7 x 3 x 8 cm (display unit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\n\u003cp\u003eSuitable for freshwater and marine aquariums of any size, wherever there's a cover flap or hood lip to clip the display to. Not a replacement for a controller probe on a chiller or heating system that needs to switch equipment automatically — this unit only displays a reading, it doesn't control anything.\u003c\/p\u003e\n\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\n\u003cp\u003eCovered by Juwel's 24-month manufacturer guarantee, in addition to your rights under Australian Consumer Law. Standard shipping applies.\u003c\/p\u003e\n\u003ch3\u003eCommon questions\u003c\/h3\u003e\n\u003ch4\u003eDoes the sensor need to sit near the heater or the inlet?\u003c\/h4\u003e\n\u003cp\u003eNo — for the most representative reading, place the sensor away from the heater and any filter outlet, where the water is well mixed with the rest of the tank.\u003c\/p\u003e\n\u003ch4\u003eWill the battery last long?\u003c\/h4\u003e\n\u003cp\u003eJuwel doesn't publish a runtime figure for the 3.0. As a simple digital display running on one AA cell, expect it to run for many months of normal use before the battery needs replacing.\u003c\/p\u003e\n\u003ch4\u003eCan I use it on a marine tank?\u003c\/h4\u003e\n\u003cp\u003eYes, the sensor and housing are safe for both freshwater and saltwater use.\u003c\/p\u003e\n\u003ch4\u003eDoes it replace my heater's built-in thermostat display?\u003c\/h4\u003e\n\u003cp\u003eIt's a good independent check on it. Many heater thermostats drift over time, and a separate thermometer catches that before it affects your fish.\u003c\/p\u003e","brand":"Juwel","offers":[{"title":"Default Title","offer_id":55242254844195,"sku":"AA3413","price":59.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/juwel-digital-thermometer-3--10268561768739-1-dq.webp?v=1790372841"},{"product_id":"teco-r290-chiller","title":"Teco R290 Chiller","description":"\u003cp\u003e\u003cstrong\u003eHolds your set temperature through a Queensland summer without an R134a-style refrigerant.\u003c\/strong\u003e The Teco R290 chiller range cools aquarium water with a titanium heat exchanger and the low-impact R290 refrigerant, and comes in three sizes — TK500, TK1000 and TK2000 — sized by the litres of water they're rated to hold at temperature in a warm room.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eR290 refrigerant\u003c\/strong\u003e — a lower-impact eco-refrigerant than the R134a used in older chiller generations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTitanium heat exchanger\u003c\/strong\u003e — safe for both freshwater and saltwater, and resistant to corrosion over years of use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDigital thermostat\u003c\/strong\u003e — 0.1°C set-point resolution across a 5–35°C range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiFi-ready\u003c\/strong\u003e — pairs with the separately sold Teco Nnect module for remote monitoring and alerts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree sizes on one page\u003c\/strong\u003e — sized to your tank volume rather than forcing you to buy oversized capacity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003cth\u003eTK500\u003c\/th\u003e\n\u003cth\u003eTK1000\u003c\/th\u003e\n\u003cth\u003eTK2000\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eRated tank volume\u003c\/th\u003e\n\u003ctd\u003eUp to 500L\u003c\/td\u003e\n\u003ctd\u003eUp to 1000L\u003c\/td\u003e\n\u003ctd\u003eUp to 2000L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCooling power draw\u003c\/th\u003e\n\u003ctd\u003e240W\u003c\/td\u003e\n\u003ctd\u003e315W\u003c\/td\u003e\n\u003ctd\u003e440W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRefrigerant\u003c\/th\u003e\n\u003ctd\u003eR290\u003c\/td\u003e\n\u003ctd\u003eR290\u003c\/td\u003e\n\u003ctd\u003eR290\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensions (W x D x H)\u003c\/th\u003e\n\u003ctd\u003e310 x 310 x 416mm\u003c\/td\u003e\n\u003ctd\u003e310 x 310 x 458mm\u003c\/td\u003e\n\u003ctd\u003e310 x 310 x 500mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003eApprox. 17kg\u003c\/td\u003e\n\u003ctd\u003eApprox. 20kg\u003c\/td\u003e\n\u003ctd\u003eApprox. 20kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMinimum flow rate\u003c\/th\u003e\n\u003ctd\u003e400L\/h\u003c\/td\u003e\n\u003ctd\u003e500L\/h\u003c\/td\u003e\n\u003ctd\u003e600L\/h\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWater connection\u003c\/th\u003e\n\u003ctd\u003e3\/4in (16mm ID)\u003c\/td\u003e\n\u003ctd\u003e3\/4in (16mm ID)\u003c\/td\u003e\n\u003ctd\u003e3\/4in (16mm ID)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSupply\u003c\/th\u003e\n\u003ctd colspan=\"3\"\u003e230-240V, 50Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSet-point range\u003c\/th\u003e\n\u003ctd colspan=\"3\"\u003e5°C to 35°C, 0.1°C resolution\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003ePerformance — cooling capacity by ambient temperature\u003c\/h3\u003e\n\u003cp\u003eTeco rates each model against a single published condition rather than a full curve across every ambient: water held at 25°C, room ambient at 30°C, with a heat load of roughly 0.3–0.5 watts per litre from lighting and pumps. Under that condition, each model holds its full rated volume at temperature. Teco does not publish a broader table of capacity at other ambient temperatures for this range — where the room runs hotter than 30°C for extended periods, or the tank carries a heavier lighting load than the rated 0.3–0.5 W\/L, expect the achievable pulldown to fall short of the full rated volume, and size up rather than run a unit at its ceiling.\u003c\/p\u003e\n\u003cp\u003eIndependent bench testing (not Teco's own figures) gives a feel for real-world pulldown: a TK500-class unit has been reported holding a 540L reef tank under 27.5°C in a 30°C+ Italian summer, with the help of an external fan on the unit — useful context, but a third-party result, not a manufacturer spec.\u003c\/p\u003e\n\u003ch3\u003eWhich one do I need?\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eBest for\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eTK500\u003c\/td\u003e\n\u003ctd\u003eTanks up to 500L with a standard lighting and pump load\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTK1000\u003c\/td\u003e\n\u003ctd\u003eTanks up to 1000L, or a smaller tank with a heavier-than-average heat load\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTK2000\u003c\/td\u003e\n\u003ctd\u003eTanks up to 2000L, or systems (display plus sump) totalling that volume\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eSize up rather than down if your tank runs hot lighting, a large sump return, or sits in a room that regularly tops 30°C — the rated volumes assume the standard test condition above, not a worst-case Australian summer.\u003c\/p\u003e\n\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuitable for:\u003c\/strong\u003e fresh and saltwater aquariums, sumps and systems within the rated volume, plumbed in-line with a return or dedicated circulation pump.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e running with no water flow through the unit — all three models need the stated minimum flow rate to work safely and effectively; check your pump can supply it before buying.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSafety\u003c\/h3\u003e\n\u003cp\u003eMains-powered, 230-240V, 50Hz. Install with an RCD-protected circuit as with any aquarium electrical equipment. Contains R290, a flammable refrigerant gas at high concentration — the sealed refrigerant circuit is not user-serviceable, and the unit should be installed with the clearance space the manual specifies for ventilation.\u003c\/p\u003e\n\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\n\u003cp\u003eKeep the air intake and exhaust clear of dust and away from walls on all sides to maintain airflow across the heat exchanger. A chiller starved of airflow works harder and cools less effectively.\u003c\/p\u003e\n\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\n\u003cp\u003eCovered by the manufacturer's warranty, in addition to your rights under Australian Consumer Law. These units are heavier bench-top items — check the specifications table for weight before choosing a delivery address without easy access.\u003c\/p\u003e\n\u003ch3\u003eCommon questions\u003c\/h3\u003e\n\u003ch4\u003eWhat does \"up to 500L\" actually assume?\u003c\/h4\u003e\n\u003cp\u003eIt assumes water held at 25°C in a 30°C room, with a heat load of about 0.3–0.5 watts per litre from lights and pumps. A hotter room or heavier lighting load will reduce how much volume the same unit can hold at temperature.\u003c\/p\u003e\n\u003ch4\u003eCan I add WiFi monitoring later?\u003c\/h4\u003e\n\u003cp\u003eYes — all three models are WiFi-ready and accept the Teco Nnect module, sold separately, for remote monitoring and alerts.\u003c\/p\u003e\n\u003ch4\u003eDo I need a dedicated pump to run water through it?\u003c\/h4\u003e\n\u003cp\u003eYou need enough flow to meet the minimum rate for your model — 400L\/h for the TK500, 500L\/h for the TK1000, or 600L\/h for the TK2000 — either from your existing return pump or a small dedicated one.\u003c\/p\u003e\n\u003ch4\u003eIs R290 safer than older refrigerants?\u003c\/h4\u003e\n\u003cp\u003eR290 has a much lower environmental impact than R134a. It is flammable in concentrated form, which is why the refrigerant circuit is sealed and not user-serviceable — this doesn't change how you use the chiller day to day.\u003c\/p\u003e\n\u003ch4\u003eWill this fit in a stand?\u003c\/h4\u003e\n\u003cp\u003eCheck the dimensions table against your cabinet's internal clearance and make sure there's room on all sides for airflow — these are bench-top units, not designed to run in a sealed, tight space.\u003c\/p\u003e","brand":"Teco","offers":[{"title":"Tk500","offer_id":55242268311843,"sku":"AA0704","price":1495.95,"currency_code":"AUD","in_stock":false},{"title":"Tk1000","offer_id":55335353712931,"sku":"AA0705","price":1895.95,"currency_code":"AUD","in_stock":false},{"title":"Tk2000","offer_id":55335353745699,"sku":"AA0706","price":2490.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/teco-r290-chiller-43106796208419.webp?v=1790237816"},{"product_id":"bioscape-pro-electronic-heater","title":"Bioscape PRO Electronic Heater","description":"\u003cp\u003e\u003cstrong\u003eSteady tank temperature, shown on its own display.\u003c\/strong\u003e The Bioscape PRO Electronic Heater is a submersible aquarium heater with electronic thermostat control and a dual LED display that shows both the current water temperature and the target you've set. It's sold in two wattages — 500 W for tanks up to 300 L, and 800 W for tanks up to 400 L — both holding 17–34°C to within ±0.1°C.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual digital display\u003c\/strong\u003e — shows current water temperature and the target you've set, so you can check it's working without a separate thermometer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e±0.1°C accuracy across 17–34°C\u003c\/strong\u003e — electronic control holds a tighter band than an old mechanical dial thermostat.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReinforced quartz glass construction\u003c\/strong\u003e — a shield protects the quartz tube from knocks without needing a full separate guard cage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIPX8 waterproof rating\u003c\/strong\u003e — rated for full submersion, matching how the heater is designed to run.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOver-temperature cut-off at 35°C\u003c\/strong\u003e — shuts down automatically if the water exceeds the safe band, instead of continuing to add heat.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-water sensor\u003c\/strong\u003e — powers down if the water level drops too low to keep the heating element submerged.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower-off memory\u003c\/strong\u003e — remembers your target temperature setting after a power interruption, rather than resetting to default.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpec\u003c\/th\u003e\n\u003cth\u003e500 W\u003c\/th\u003e\n\u003cth\u003e800 W\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated tank volume\u003c\/td\u003e\n\u003ctd\u003eUp to 300 L\u003c\/td\u003e\n\u003ctd\u003eUp to 400 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e240 V\u003c\/td\u003e\n\u003ctd\u003e240 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature range\u003c\/td\u003e\n\u003ctd\u003e17–34°C\u003c\/td\u003e\n\u003ctd\u003e17–34°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e±0.1°C\u003c\/td\u003e\n\u003ctd\u003e±0.1°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOver-temperature cut-off\u003c\/td\u003e\n\u003ctd\u003e35°C\u003c\/td\u003e\n\u003ctd\u003e35°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eReinforced quartz glass\u003c\/td\u003e\n\u003ctd\u003eReinforced quartz glass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWaterproof rating\u003c\/td\u003e\n\u003ctd\u003eIPX8\u003c\/td\u003e\n\u003ctd\u003eIPX8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e2 years\u003c\/td\u003e\n\u003ctd\u003e2 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eHeater sizing guide\u003c\/h3\u003e\n\u003cp\u003eBioscape publishes a rated tank volume for each wattage rather than a full watts-per-litre-per-degree curve. Both figures assume typical indoor conditions — a colder room, an unheated area, or a bigger gap between room and target temperature will all need more wattage headroom than the rated ceiling suggests for a given tank size.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eWattage\u003c\/th\u003e\n\u003cth\u003eRated up to\u003c\/th\u003e\n\u003cth\u003eTypical use\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e500 W\u003c\/td\u003e\n\u003ctd\u003e300 L\u003c\/td\u003e\n\u003ctd\u003eStandard indoor tropical setups where the room doesn't get particularly cold\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e800 W\u003c\/td\u003e\n\u003ctd\u003e400 L\u003c\/td\u003e\n\u003ctd\u003eLarger tanks, or tanks in cooler rooms and garages where more headroom helps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eWill it fit my tank?\u003c\/h3\u003e\n\u003cp\u003eMatch the wattage to your tank's litres, not just its footprint — a heavily stocked or draughty setup can need more wattage than a bare litre count suggests. If your tank sits right at 300 L, the 800 W unit gives more headroom than running the 500 W at its rated ceiling.\u003c\/p\u003e\n\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\n\u003cp\u003eSuitable for freshwater and saltwater aquariums — Bioscape markets this heater for use in either. Not suitable for use out of water, or as your only point of temperature monitoring; pair it with a separate tank thermometer to cross-check the reading, as with any heater.\u003c\/p\u003e\n\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\n\u003cp\u003eUnplug before doing water changes if the heater will be exposed above the waterline even briefly, and let it cool before handling after it's been running.\u003c\/p\u003e\n\u003ch3\u003eSafety\u003c\/h3\u003e\n\u003cp\u003eRuns on 240 V, suiting Australian mains supply. Reinforced quartz glass construction with a protective shield, IPX8 waterproof rating, over-temperature cut-off at 35°C, a low-water sensor, and power-off memory. Always keep it fully submerged during operation, as stated on the unit itself.\u003c\/p\u003e\n\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\n\u003cp\u003eCovered by Bioscape's 2-year warranty, in addition to your rights under Australian Consumer Law. Ships by standard parcel post.\u003c\/p\u003e\n\u003ch3\u003eGoes well with\u003c\/h3\u003e\n\u003cp\u003eA tank thermometer to independently verify the display reading, and Bioscape Premium Carbon Pouches if you're removing medication residue after a treatment course — carbon should be pulled before dosing and can go back in once the heater's held a steady temperature for a few days.\u003c\/p\u003e\n\u003ch3\u003eCommon questions\u003c\/h3\u003e\n\u003ch4\u003eWhich wattage do I need for my tank?\u003c\/h4\u003e\n\u003cp\u003eMatch litres to the rated ceiling — 500 W for up to 300 L, 800 W for up to 400 L — and size up if the room the tank sits in runs cold.\u003c\/p\u003e\n\u003ch4\u003eWhat happens if the heater is accidentally left out of the water?\u003c\/h4\u003e\n\u003cp\u003eThe built-in low-water sensor is designed to power the unit down rather than let it run dry, per Bioscape's published safety features.\u003c\/p\u003e\n\u003ch4\u003eCan I use this in a saltwater tank?\u003c\/h4\u003e\n\u003cp\u003eYes — Bioscape markets it for both freshwater and saltwater aquariums.\u003c\/p\u003e\n\u003ch4\u003eDoes it need a separate controller?\u003c\/h4\u003e\n\u003cp\u003eNo. Thermostat control is built into the unit via the electronic display — no external controller is required.\u003c\/p\u003e\n\u003ch4\u003eHow accurate is the temperature reading?\u003c\/h4\u003e\n\u003cp\u003e±0.1°C across the 17–34°C operating range, per Bioscape's published spec.\u003c\/p\u003e","brand":"Bioscape","offers":[{"title":"500 w","offer_id":55249200840995,"sku":null,"price":82.95,"currency_code":"AUD","in_stock":true},{"title":"800 w","offer_id":55249200873763,"sku":"BIS551","price":112.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/bioscape-pro-electronic-heat-43876824973603.webp?v=1790239781"},{"product_id":"fluval-t-electronic-heater","title":"Fluval T Electronic Heater","description":"\u003cp\u003e\u003cstrong\u003eA fully electronic heater with a digital thermostat, integrated guard and automatic run-dry protection — freshwater tanks only.\u003c\/strong\u003e The Fluval T-Series heater holds a set temperature with an electronic sensor and dial, in a glass body sized to suit tanks from 50 L up to 300 L depending on wattage.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectronic thermostat\u003c\/strong\u003e — set and hold your target temperature with a top dial, no manual calibration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated heater guard\u003c\/strong\u003e — built into the unit, not sold separately, to keep fish and decor off the hot glass.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic run-dry protection\u003c\/strong\u003e — the heater cuts power if water drops below the minimum fill line or the unit is removed from water.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFully submersible\u003c\/strong\u003e — can be mounted vertically or horizontally, to a maximum depth of 1 m.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFive wattages\u003c\/strong\u003e — sized from small nano setups (50 W) up to large freshwater community and planted tanks (300 W).\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhich wattage do I need?\u003c\/h3\u003e\u003cp\u003eFluval rates each wattage to a maximum tank volume, assuming a typical indoor ambient temperature. In a cold room, a garage, or an unheated space in winter, size up rather than to the exact litre figure.\u003c\/p\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eWattage\u003c\/th\u003e\n\u003cth\u003eRated up to\u003c\/th\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e50 W\u003c\/td\u003e\n\u003ctd\u003e50 L\u003c\/td\u003e\n\u003ctd\u003e26.5 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e100 W\u003c\/td\u003e\n\u003ctd\u003e100 L\u003c\/td\u003e\n\u003ctd\u003e26.5 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e150 W\u003c\/td\u003e\n\u003ctd\u003e150 L\u003c\/td\u003e\n\u003ctd\u003e32 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e200 W\u003c\/td\u003e\n\u003ctd\u003e200 L\u003c\/td\u003e\n\u003ctd\u003e32 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e300 W\u003c\/td\u003e\n\u003ctd\u003e300 L\u003c\/td\u003e\n\u003ctd\u003e35.5 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eTemperature range\u003c\/th\u003e\n\u003ctd\u003e22–32°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eConstruction\u003c\/th\u003e\n\u003ctd\u003eGlass heating tube — handle carefully, not a shatterproof polymer design\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eControl\u003c\/th\u003e\n\u003ctd\u003eBuilt-in electronic thermostat, no separate controller required\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProtection\u003c\/th\u003e\n\u003ctd\u003eAutomatic shut-off if water level drops below the minimum mark\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWater type\u003c\/th\u003e\n\u003ctd\u003eFreshwater only — not rated for marine or reef use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower\u003c\/th\u003e\n\u003ctd\u003e240 V \/ 50 Hz, Australian plug\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003e2 years manufacturer warranty, in addition to your rights under Australian Consumer Law\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\u003cp\u003eSuitable for freshwater community, planted and nano tanks within the rated volume for each wattage. Not suitable for marine or reef aquariums — Fluval builds the T-Series for freshwater use only, and it is not sold or warranted as a saltwater heater.\u003c\/p\u003e\u003ch3\u003eSafety\u003c\/h3\u003e\u003cp\u003eMains-powered and fully submersible: use on a circuit protected by an RCD, and never operate the heater out of water. Allow the unit to cool before handling after use — the glass body runs hot. Keep the heater below the marked minimum water line at all times; the run-dry cut-off is a backup, not a substitute for checking water level.\u003c\/p\u003e\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\u003cp\u003eWipe down periodically to remove algae or mineral build-up, which can insulate the glass and affect accuracy. Check the temperature against a separate thermometer occasionally — like any thermostat, drift can occur over years of use.\u003c\/p\u003e\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\u003cp\u003eCovered by Fluval's 2-year manufacturer warranty against defects, on top of your consumer guarantees under Australian Consumer Law. Standard parcel delivery within Australia.\u003c\/p\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003ch4\u003eCan I use this in a marine or reef tank?\u003c\/h4\u003e\u003cp\u003eNo. Fluval builds the T-Series for freshwater use only — it isn't rated or warranted for saltwater.\u003c\/p\u003e\u003ch4\u003eDo I need a separate controller?\u003c\/h4\u003e\u003cp\u003eNo. The thermostat is built into the heater — set your temperature on the top dial.\u003c\/p\u003e\u003ch4\u003eWhat happens if the water level drops too low?\u003c\/h4\u003e\u003cp\u003eThe heater cuts power automatically once the level drops below the marked minimum line, but always check water levels yourself rather than relying on this as your only safeguard.\u003c\/p\u003e\u003ch4\u003eWhich wattage suits a 120 L tank?\u003c\/h4\u003e\u003cp\u003eThe 150 W model is rated up to 150 L, giving headroom over a 120 L tank. In a cold room or over winter, sizing up is safer than sizing to the exact litre figure.\u003c\/p\u003e\u003ch4\u003eIs the heater guard included?\u003c\/h4\u003e\u003cp\u003eYes — it's built into the unit, not a separate purchase.\u003c\/p\u003e","brand":"Fluval","offers":[{"title":"50 w","offer_id":55249637736739,"sku":"FLV20","price":53.95,"currency_code":"AUD","in_stock":false},{"title":"100 w","offer_id":55249637769507,"sku":"AA3189","price":57.95,"currency_code":"AUD","in_stock":true},{"title":"150 w","offer_id":55249637802275,"sku":"AA3190","price":61.95,"currency_code":"AUD","in_stock":true},{"title":"200 w","offer_id":55249637835043,"sku":"FLV23","price":65.95,"currency_code":"AUD","in_stock":true},{"title":"300 w","offer_id":55249637867811,"sku":"AA3192","price":70.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/fluval-t-electronic-heater-43875410575651.webp?v=1790236364"},{"product_id":"fluval-pre-set-aquarium-heater","title":"Fluval Pre-Set Aquarium Heater","description":"\u003cp\u003e\u003cstrong\u003eSet it, submerge it, forget it — a heater with nothing to misadjust.\u003c\/strong\u003e The Fluval Pre-Set Aquarium Heater holds a fixed 24–26°C automatically, with no dial to bump out of range. It's built for small, straightforward setups — nano tanks, quarantine tubs and betta bowls — where a full adjustable heater is more control than the tank needs. It's sold in two wattages: 10 W for tanks up to 10 L, and 25 W for tanks up to 25 L.\u003c\/p\u003e\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFixed 24–26°C output\u003c\/strong\u003e — no dial means no risk of an accidental temperature change.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShatterproof polymer body\u003c\/strong\u003e — safer around active fish and inquisitive hands than glass.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFully submersible\u003c\/strong\u003e — the whole unit, cord included, can sit underwater.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLED running indicator\u003c\/strong\u003e — a light confirms the heater is drawing power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo wattages\u003c\/strong\u003e — 10 W for up to 10 L, 25 W for up to 25 L, so you can match it to the tank rather than oversize it.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpec\u003c\/th\u003e\n\u003cth\u003e10 W (SKU BA9128)\u003c\/th\u003e\n\u003cth\u003e25 W (SKU BA8710)\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePreset temperature\u003c\/td\u003e\n\u003ctd\u003e24–26°C\u003c\/td\u003e\n\u003ctd\u003e24–26°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated tank volume\u003c\/td\u003e\n\u003ctd\u003eUp to 10 L\u003c\/td\u003e\n\u003ctd\u003eUp to 25 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e13.5 x 2 x 1.5 cm\u003c\/td\u003e\n\u003ctd\u003e15 x 3 x 1.75 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eShatterproof polymer, fully submersible\u003c\/td\u003e\n\u003ctd\u003eShatterproof polymer, fully submersible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThermostat\u003c\/td\u003e\n\u003ctd\u003ePre-set, non-adjustable\u003c\/td\u003e\n\u003ctd\u003ePre-set, non-adjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarcode\u003c\/td\u003e\n\u003ctd\u003e015561107433\u003c\/td\u003e\n\u003ctd\u003e015561107440\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eWhich wattage do I need?\u003c\/h3\u003e\n\u003cp\u003eMatch the heater to your actual tank volume, not the tank you plan to grow into. The 10 W is rated for tanks up to 10 L; the 25 W for tanks up to 25 L. Fluval notes that in a cold room — below about 17°C ambient — even a correctly-sized heater may struggle to hold 24–26°C, and a higher-wattage model is the safer choice.\u003c\/p\u003e\n\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSuitable for small freshwater and marine tanks, nano setups, betta bowls and quarantine tubs at the rated volume.\u003c\/li\u003e\n\u003cli\u003eNot suitable if you need a specific target temperature outside 24–26°C — this heater has no dial, so species needing warmer or cooler water need an adjustable heater instead.\u003c\/li\u003e\n\u003cli\u003eNot suitable for tanks larger than the rated volume — undersizing a heater means it can run continuously without reaching temperature.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSafety\u003c\/h3\u003e\n\u003cp\u003eFully submerge the heater before switching it on, and always unplug it before removing it from the water — running a heater dry can crack the casing. Because the temperature isn't adjustable, there's no dial to set incorrectly, but there's also no way to fine-tune it for a fussier species. A heater guard is recommended in tanks with fish or invertebrates prone to resting against warm surfaces.\u003c\/p\u003e\n\u003ch3\u003eRunning costs\u003c\/h3\u003e\n\u003cp\u003eA heater draws its full wattage only while actively heating — the thermostat cycles it on and off once the tank reaches 24–26°C, so actual running cost is well below the wattage times 24 hours. The exact duty cycle depends on your room temperature and tank insulation, so we haven't published a specific annual figure here.\u003c\/p\u003e\n\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\n\u003cp\u003eCovered by Fluval's manufacturer warranty against defects, in addition to your rights under the Australian Consumer Law. Standard parcel delivery.\u003c\/p\u003e\n\u003ch3\u003eCommon questions\u003c\/h3\u003e\n\u003ch4\u003eWhat temperature does this heater run at?\u003c\/h4\u003e\n\u003cp\u003eA fixed 24–26°C, with no adjustment available on either wattage.\u003c\/p\u003e\n\u003ch4\u003eCan I use the 10 W version in a 20 L tank?\u003c\/h4\u003e\n\u003cp\u003eNo — it's rated to 10 L. Oversizing the tank against the heater means it may never reach the target temperature, especially in a cool room. Use the 25 W version instead.\u003c\/p\u003e\n\u003ch4\u003eDoes it come with a heater guard?\u003c\/h4\u003e\n\u003cp\u003eNo guard is included. If you keep fish or invertebrates that rest against surfaces, fit a separate guard.\u003c\/p\u003e\n\u003ch4\u003eIs it safe for marine tanks?\u003c\/h4\u003e\n\u003cp\u003eYes, both wattages are rated for freshwater and marine use.\u003c\/p\u003e","brand":"Fluval","offers":[{"title":"10 w","offer_id":55249638097187,"sku":"BA9128","price":30.95,"currency_code":"AUD","in_stock":true},{"title":"25 w","offer_id":55249638129955,"sku":"BA8710","price":34.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/fluval-pre-set-aquarium-heat-43508053377315.webp?v=1790234314"},{"product_id":"bioscape-tropic-aquarium-heater","title":"Bioscape Tropic Aquarium Heater","description":"\u003cp\u003e\u003cstrong\u003eAn adjustable heater sized to your tank, not a fixed number pretending to fit everything.\u003c\/strong\u003e The Bioscape Tropic Aquarium Heater is a fully automatic, submersible glass heater sold in five wattages — 25 W, 55 W, 100 W, 200 W and 300 W — so you can match the heater to your tank volume rather than running an undersized unit flat out or an oversized one short-cycling. Every size holds its set temperature automatically, includes a bonus thermometer, and is backed by Bioscape's 3-year replacement warranty.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFive wattages, one design\u003c\/strong\u003e — 25 W, 55 W, 100 W, 200 W and 300 W, with the 55 W and up sized to tanks from 50 L to 400 L.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFully automatic thermostat\u003c\/strong\u003e — set the dial once and the heater maintains that temperature on its own, cutting in and out as needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e22–34°C adjustable range\u003c\/strong\u003e — covers everything from cooler community setups to warm-water cichlids and bettas.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOn\/off indicator light\u003c\/strong\u003e — a glance tells you whether the element is currently heating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotally submersible\u003c\/strong\u003e — can be mounted vertically or horizontally, useful in shallower or heavily aquascaped tanks where a vertical heater won't fit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBonus thermometer included\u003c\/strong\u003e — a simple check against the heater's own reading, which is worth doing on any heater.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3-year replacement warranty\u003c\/strong\u003e — well above the informal one-year standard on budget heaters.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eWattage\u003c\/th\u003e\n\u003cth\u003eSKU\u003c\/th\u003e\n\u003cth\u003eRecommended tank size\u003c\/th\u003e\n\u003cth\u003eTemperature range\u003c\/th\u003e\n\u003cth\u003eOrientation\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e25 W\u003c\/td\u003e\n\u003ctd\u003eHT025\u003c\/td\u003e\n\u003ctd\u003eNot published by Bioscape for this size\u003c\/td\u003e\n\u003ctd\u003e22–34°C, adjustable\u003c\/td\u003e\n\u003ctd\u003eNot stated by Bioscape for this size\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e55 W\u003c\/td\u003e\n\u003ctd\u003eHT50\u003c\/td\u003e\n\u003ctd\u003e50–100 L\u003c\/td\u003e\n\u003ctd\u003e22–34°C, adjustable\u003c\/td\u003e\n\u003ctd\u003eVertical or horizontal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e100 W\u003c\/td\u003e\n\u003ctd\u003eHT100\u003c\/td\u003e\n\u003ctd\u003e100–200 L\u003c\/td\u003e\n\u003ctd\u003e22–34°C, adjustable\u003c\/td\u003e\n\u003ctd\u003eVertical or horizontal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e200 W\u003c\/td\u003e\n\u003ctd\u003eHT200\u003c\/td\u003e\n\u003ctd\u003e200–300 L\u003c\/td\u003e\n\u003ctd\u003e22–34°C, adjustable\u003c\/td\u003e\n\u003ctd\u003eVertical or horizontal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e300 W\u003c\/td\u003e\n\u003ctd\u003eHT300\u003c\/td\u003e\n\u003ctd\u003e300–400 L\u003c\/td\u003e\n\u003ctd\u003e22–34°C, adjustable\u003c\/td\u003e\n\u003ctd\u003eVertical or horizontal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003eAll five sizes share the same thermostat, indicator light and construction — only the wattage, physical length and recommended tank size change.\u003c\/p\u003e\u003ch3\u003eWhich wattage do I need?\u003c\/h3\u003e\u003cp\u003eBioscape's stated ranges above assume a typical Australian indoor ambient and a tropical target temperature — they're a starting point, not a guarantee, because the real variable is how far your room temperature sits below your target, not just tank volume. A tank in an air-conditioned room or an unheated garage needs more heating power per litre than the same tank in a warm north-facing room. If your tank runs at the top end of a wattage's recommended range, or the room gets genuinely cold overnight, size up rather than running one heater at its limit continuously.\u003c\/p\u003e\u003ch4\u003eHeater sizing guide\u003c\/h4\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eTank volume\u003c\/th\u003e\n\u003cth\u003eRecommended wattage\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNano and small tanks\u003c\/td\u003e\n\u003ctd\u003e25 W (HT025). Bioscape do not publish a litre range for this size, so ask us if you are unsure.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUp to 100 L\u003c\/td\u003e\n\u003ctd\u003e55 W (HT50)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e100–200 L\u003c\/td\u003e\n\u003ctd\u003e100 W (HT100)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e200–300 L\u003c\/td\u003e\n\u003ctd\u003e200 W (HT200)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e300–400 L\u003c\/td\u003e\n\u003ctd\u003e300 W (HT300)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003eFor anything over 400 L, or a cold-room installation at any volume, run two heaters rather than one oversized unit — it splits the load, and gives you a working heater if one fails.\u003c\/p\u003e\u003ch3\u003eSetup and use\u003c\/h3\u003e\u003cp\u003eFully submerge the heater to at least its marked minimum depth, angled or horizontal in shallow tanks, before switching it on — running any glass heater exposed to air will crack the glass. Let it sit at tank temperature for a few minutes before powering up, and don't handle or remove it while it's hot; going straight from hot glass into cooler water or air is the other common way these fail. Set the dial to your target temperature and use the bonus thermometer over the first day or two to confirm the tank is actually settling where you set it, since dial markings are a guide rather than a lab-accurate scale.\u003c\/p\u003e\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\u003cp\u003eSuitable for freshwater and marine aquariums needing supplementary heating — tropical community tanks, cichlid tanks, bettas and reef or FOWLR systems. Not a substitute for a separate controller in setups where you need tighter-than-thermostat temperature accuracy or a fail-safe against a stuck-on heater; a dedicated aquarium controller with a temperature probe adds that layer if your livestock can't tolerate a thermostat fault.\u003c\/p\u003e\u003ch3\u003eWhat's included\u003c\/h3\u003e\u003cp\u003eThe heater unit and a bonus thermometer. It does not include a mount beyond the suction cups fitted to the unit, a protective guard, or a separate controller.\u003c\/p\u003e\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\u003cp\u003eWipe down any algae or mineral build-up on the glass body periodically so heat transfers efficiently to the water rather than insulating against it. Check the suction mounts every few weeks — a heater that's slipped to rest against the glass or substrate can create a hot spot or, in shallow tanks, come partly out of the water.\u003c\/p\u003e\u003ch3\u003eRunning costs\u003c\/h3\u003e\u003cp\u003eActual running cost depends on how far below your target temperature the room sits and how well insulated the tank is — a heater's wattage is its maximum draw, not its average, since the thermostat cycles it on and off once the tank is at temperature. Bioscape doesn't publish a duty-cycle or annual kWh figure for this range, so we can't give a reliable per-tank dollar estimate here; as a rough frame of reference, a heater cycling at roughly a third duty in a stable Australian indoor tropical setup would draw noticeably less than its full wattage run continuously.\u003c\/p\u003e\u003ch3\u003eSafety\u003c\/h3\u003e\u003cp\u003eMains-powered and fully submersible — never operate the heater out of water, even briefly, and always switch off and allow it to cool before removing it for maintenance or a water change. Use on a circuit protected by an RCD\/safety switch, standard practice for anything submersible and mains-powered in an aquarium.\u003c\/p\u003e\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\u003cp\u003eBacked by Bioscape's 3-year replacement warranty, in addition to your rights under Australian Consumer Law.\u003c\/p\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003ch4\u003eCan I mount it horizontally in a shallow tank?\u003c\/h4\u003e\u003cp\u003eYes — the 55 W, 100 W, 200 W and 300 W are rated for vertical or horizontal mounting, provided the unit stays fully submerged to its marked minimum depth. Bioscape don't state an orientation for the 25 W, so keep that size vertical unless they say otherwise.\u003c\/p\u003e\u003ch4\u003eWhat temperature should I set it to?\u003c\/h4\u003e\u003cp\u003eThat depends on what you're keeping — most tropical community fish sit around 24–26°C, while some cichlids and bettas prefer closer to 27–28°C. The heater's adjustable range covers 22–34°C, so check the needs of your specific fish rather than using one number for every tank.\u003c\/p\u003e\u003ch4\u003eMy tank sits right on the edge of two wattages — which do I pick?\u003c\/h4\u003e\u003cp\u003eGo with the larger wattage if your room runs cool or the tank is in a draughty spot, and the smaller one if the room stays warm — an undersized heater running flat out ages faster than one with some headroom.\u003c\/p\u003e\u003ch4\u003eDo I need a separate controller as well?\u003c\/h4\u003e\u003cp\u003eNot for typical community fishkeeping — the built-in thermostat is fully automatic. For sensitive livestock or a setup where a stuck-on heater would be a serious problem, a separate controller with its own temperature probe adds a safety layer this heater doesn't have on its own.\u003c\/p\u003e\u003ch4\u003eIs the thermometer that comes with it accurate enough to rely on?\u003c\/h4\u003e\u003cp\u003eTreat it as a useful cross-check rather than a lab-grade reading — compare it against the heater's own dial setting over the first few days, and if the two disagree by more than a degree or so, trust the thermometer and adjust the dial.\u003c\/p\u003e","brand":"Bioscape","offers":[{"title":"100w","offer_id":55293071589667,"sku":"HT100","price":34.95,"currency_code":"AUD","in_stock":true},{"title":"55w","offer_id":55335020921123,"sku":"HT50","price":32.95,"currency_code":"AUD","in_stock":true},{"title":"200w","offer_id":55335020953891,"sku":"HT200","price":37.95,"currency_code":"AUD","in_stock":true},{"title":"300w","offer_id":55335020986659,"sku":"HT300","price":43.95,"currency_code":"AUD","in_stock":true},{"title":"25w","offer_id":55584405061923,"sku":"HT025","price":27.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/bioscape-tropic-aquarium-hea-43314188517667.webp?v=1790238166"},{"product_id":"fluval-pre-set-aquarium-heater-50w-p50","title":"Fluval Pre Set Aquarium Heater 50w P50","description":"\u003cp\u003e\u003cstrong\u003eA fixed 50 W heater that holds nano tanks at 24–26°C without any dial to set.\u003c\/strong\u003e The Fluval P50 is a preset submersible heater built for aquariums up to 50 litres, aimed at anyone who wants stable, tropical-community temperatures without adjusting a thermostat.\u003c\/p\u003e\u003cp\u003eBecause the temperature is fixed at the factory, there's nothing to calibrate and nothing to get wrong at setup — drop it in, plug it in, and the LED confirms it's running. That also means it's the wrong choice if your fish need a temperature outside 24–26°C, or if you want to fine-tune the setting yourself.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePreset to 24–26°C (76–78°F)\u003c\/strong\u003e — no dial, no calibration, one less thing to get wrong.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShatterproof polymer body\u003c\/strong\u003e — replaces fragile glass construction, so a knock against gravel or décor won't crack the heater.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFully submersible\u003c\/strong\u003e — can be mounted horizontally or vertically, giving more placement options in small tanks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLED running indicator\u003c\/strong\u003e — a glance tells you it's powered and heating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreshwater and saltwater safe\u003c\/strong\u003e — the same unit works in a nano reef or a community freshwater tank.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eFluval part number\u003c\/th\u003e\n\u003ctd\u003eA745\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWattage\u003c\/th\u003e\n\u003ctd\u003e50 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePreset temperature\u003c\/th\u003e\n\u003ctd\u003e24–26°C (76–78°F), fixed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRecommended tank size\u003c\/th\u003e\n\u003ctd\u003eUp to 50 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003ctd\u003e15.5 x 4 x 2 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eConstruction\u003c\/th\u003e\n\u003ctd\u003eShatterproof polymer, fully submersible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThermostat type\u003c\/th\u003e\n\u003ctd\u003eFixed preset (not adjustable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWater type\u003c\/th\u003e\n\u003ctd\u003eFreshwater and marine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eWill it fit my tank?\u003c\/h3\u003e\u003cp\u003eFluval rates the P50 for aquariums up to 50 litres in a normally heated room. In a cold garage, laundry, or an unheated south-facing room over an Australian winter, the same 50 W has to work harder to close a bigger gap between room and tank temperature, so treat 50 L as a ceiling rather than a target in a cold location — size down, or step up to a higher-wattage Fluval preset heater if you're near that limit and the room runs cold.\u003c\/p\u003e\u003ch3\u003eWhich Fluval preset heater do I need?\u003c\/h3\u003e\u003cp\u003eThe P-Series runs as a wattage ladder, each rated to a maximum tank size in a normally heated room: the P50 shown here is 50 W for up to 50 L, with larger wattages in the range covering bigger tanks. If your tank is close to the 50 L ceiling, or the room it's in runs cold, size up rather than sitting at the limit.\u003c\/p\u003e\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\u003cp\u003eSuitable for nano and small community freshwater tanks, and small marine or reef tanks up to 50 L, needing a stable 24–26°C. Not suitable where fish need a specific temperature outside that preset range (some killifish, goldfish and cold-water natives), and not adjustable if your target temperature changes.\u003c\/p\u003e\u003ch3\u003eSafety\u003c\/h3\u003e\u003cp\u003eMains-powered and fully submersible: fit an RCD\/safety switch on the circuit it runs from, and unplug it before doing any tank maintenance that lowers the water level below the heater. Let the heater cool for a few minutes after unplugging before handling it or lifting it out of the water — like all aquarium heaters it can still be hot to the touch immediately after use.\u003c\/p\u003e\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\u003cp\u003eNo user-serviceable parts. Wipe algae or mineral build-up from the body periodically so heat transfers efficiently to the water. Do not run the heater out of water.\u003c\/p\u003e\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\u003cp\u003eBacked by Fluval's manufacturer warranty against defects, in addition to your rights under the Australian Consumer Law. Standard parcel delivery — not a dangerous-goods or oversized item.\u003c\/p\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003ch4\u003eCan I adjust the temperature?\u003c\/h4\u003e\u003cp\u003eNo. The P50 is factory-preset to 24–26°C with no dial. If you need a different or adjustable temperature, choose one of Fluval's adjustable heater ranges instead.\u003c\/p\u003e\u003ch4\u003eWill it work in a marine or reef tank?\u003c\/h4\u003e\u003cp\u003eYes, the P50 is rated for both freshwater and saltwater use.\u003c\/p\u003e\u003ch4\u003eCan I mount it horizontally?\u003c\/h4\u003e\u003cp\u003eYes, it's fully submersible and can be positioned horizontally or vertically, which helps in shorter nano tanks.\u003c\/p\u003e\u003ch4\u003eWhat size tank is it good for?\u003c\/h4\u003e\u003cp\u003eUp to 50 litres in a room that stays at a normal indoor temperature. In a colder spot, keep well under that ceiling.\u003c\/p\u003e\u003ch4\u003eDoes it need a separate thermostat or controller?\u003c\/h4\u003e\u003cp\u003eNo — the thermostat is built in and fixed, so no separate controller is required or usable with this model.\u003c\/p\u003e","brand":"Fluval","offers":[{"title":"Default Title","offer_id":55293309387043,"sku":"MRN26","price":43.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/fluval-pre-set-aquarium-heat-43875501113635.webp?v=1790236916"},{"product_id":"zoo-med-bettatherm-betta-heater","title":"Zoo Med BettaTherm Betta Heater","description":"\u003cp\u003e\u003cstrong\u003eA pocket-sized heater built for one-fish, one-bowl setups.\u003c\/strong\u003e The Zoo Med BettaTherm is a 7.5 W submersible heater sized for 1–3 US gallon (3.8–11.4 L) betta bowls and small tanks, lifting water temperature roughly 5–10°F (2.7–5.4°C) above room temperature so a betta kept in a bowl on a cool bench or in an air-conditioned room can sit in the 24.5–26.7°C range it needs, without the cost or footprint of a full aquarium heater.\u003c\/p\u003e\u003ch3\u003eKey features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFully submersible\u003c\/strong\u003e — can be buried under up to 2.5 cm of sand or gravel and hidden from view.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSized for small volumes\u003c\/strong\u003e — built specifically for 1–3 US gallon (3.8–11.4 L) bowls and nano tanks, where most full-size aquarium heaters are oversized.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePreset operation\u003c\/strong\u003e — no dial to set or misread; the heater runs to lift water 5–10°F (2.7–5.4°C) over ambient and holds there.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlass and acrylic safe\u003c\/strong\u003e — suits both bowl and small tank materials.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eWattage\u003c\/th\u003e\n\u003ctd\u003e7.5 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eVoltage\u003c\/th\u003e\n\u003ctd\u003e240 V AC, AU plug\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRated volume\u003c\/th\u003e\n\u003ctd\u003e1–3 US gal (3.8–11.4 L)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTemperature rise\u003c\/th\u003e\n\u003ctd\u003eApprox. 5–10°F (2.7–5.4°C) above ambient room temperature\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThermostat\u003c\/th\u003e\n\u003ctd\u003ePreset, non-adjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePlacement\u003c\/th\u003e\n\u003ctd\u003eFully submersible; may be buried under up to 2.5 cm of substrate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eHeat sizing — why 7.5 W is enough here\u003c\/h3\u003e\u003cp\u003eZoo Med builds the BettaTherm as a single fixed-wattage heater for 1–3 US gallon (3.8–11.4 L) bowls only, rather than publishing a wattage-per-litre table across tank sizes — at this volume, 7.5 W is enough to hold the stated 5–10°F (2.7–5.4°C) rise in a typical Australian living room. For anything larger than 3 US gallons (11.4 L), or a room that runs consistently cold, step up to a variable-wattage aquarium heater sized to the tank instead.\u003c\/p\u003e\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\u003cp\u003eSuitable for betta bowls and nano tanks from 1 to 3 US gallons (3.8–11.4 L) that need a gentle, low-wattage lift above room temperature. Not suitable for larger aquariums, and not intended to run dry — it must stay fully submerged whenever it is switched on.\u003c\/p\u003e\u003ch3\u003eSafety\u003c\/h3\u003e\u003cp\u003eMains-powered and fully submersible: plug into a GFCI\/RCD-protected outlet with a drip loop in the cord, never let the heater run dry, and unplug it before doing any tank maintenance or placing a hand in the water. It is not a repairable item — a faulty unit should be returned rather than opened.\u003c\/p\u003e\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\u003cp\u003eWipe any algae or mineral build-up from the heater body during routine bowl cleaning, and check the cord and body for cracks before each use. Always unplug before removing the heater from the water.\u003c\/p\u003e\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\u003cp\u003eCovered by Zoo Med's manufacturer warranty against defects; contact us with your order details if you believe the unit has failed. Warranty is in addition to your rights under Australian Consumer Law.\u003c\/p\u003e\u003ch3\u003eCommon questions\u003c\/h3\u003e\u003ch4\u003eWill this heat a standard 10-gallon tank?\u003c\/h4\u003e\u003cp\u003eNo — it's built for 1–3 US gallon (3.8–11.4 L) bowls and nano tanks. A larger aquarium needs a heater sized to that volume.\u003c\/p\u003e\u003ch4\u003eCan I bury it under gravel?\u003c\/h4\u003e\u003cp\u003eYes, up to about 2.5 cm of sand or gravel, as long as it stays fully submerged.\u003c\/p\u003e\u003ch4\u003eIs the temperature adjustable?\u003c\/h4\u003e\u003cp\u003eNo. It's a preset heater that lifts water roughly 5–10°F (2.7–5.4°C) above room temperature rather than holding a dial-set target.\u003c\/p\u003e\u003ch4\u003eWhat temperature do bettas actually need?\u003c\/h4\u003e\u003cp\u003eMost bettas do best around 24.5–26.7°C (76–80°F); this heater is designed to help reach that range from typical Australian room temperatures.\u003c\/p\u003e\u003ch3\u003eGoes well with\u003c\/h3\u003e\u003cp\u003ePairs with an aquarium thermometer to confirm the bowl has reached a safe temperature, since this heater's rise is preset rather than dial-adjustable.\u003c\/p\u003e","brand":"ZooMed","offers":[{"title":"Default Title","offer_id":55293329834275,"sku":"ZM366","price":58.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/zoo-med-bettatherm-betta-hea-43875827843363.webp?v=1790237147"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/collections\/BIS550_2_fa67ede1-3b4b-4e2e-bc6f-cfec1163c4dc.jpg?v=1788252714","url":"https:\/\/nicksaquariumoceanariumterrarium.com.au\/collections\/fw-heaters-chillers.oembed","provider":"Nicks AOT","version":"1.0","type":"link"}