{"product_id":"ocean-sun-deep-water-tube-t8-36","title":"Ocean Sun Deep Water Tube T8 - 36\"","description":"\u003cp\u003e\u003cstrong\u003eThe cool blue-white cast of water several metres down.\u003c\/strong\u003e The Zoo Med Ocean Sun Deep Water T8 is a 36 inch, 25 watt fluorescent tube rated at 10,000 K — the colour temperature marine keepers use for a crisp, slightly blue-shifted look.\u003c\/p\u003e\n\u003cp\u003eIt replaces the warm yellow cast of a household tube. Zoo Med lists it for both marine and freshwater aquariums, and rates it as effective for up to 10,000 hours.\u003c\/p\u003e\n\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e10,000 K colour temperature\u003c\/strong\u003e — crisp white with a blue bias. This is the reference point most marine photography and most reef tanks are set to, so the tank looks the way people expect a saltwater tank to look.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine and freshwater\u003c\/strong\u003e — Zoo Med lists the lamp for both, and states it supports aquatic plant growth as well as the zooxanthellae in photosynthetic corals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e25 watts over 36 inches\u003c\/strong\u003e — Zoo Med's imperial T8 range tops out at 25 W in this length, so one tube carries a hood rather than needing a pair to look bright.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEffective to 10,000 hours\u003c\/strong\u003e — Zoo Med's published rating, and the figure to replace on. Output drops away well before a fluorescent tube stops lighting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in Europe\u003c\/strong\u003e — Zoo Med states the lamp is manufactured to premium standards in Europe.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRuns solo or paired\u003c\/strong\u003e — unlike an actinic, a 10,000 K daylight tube is a complete viewing light on its own, and pairs with actinic when you want more blue.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003eOcean Sun 10,000 K, T8, 36 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eZoo Med item number\u003c\/th\u003e\n\u003ctd\u003eOL-36\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWattage\u003c\/th\u003e\n\u003ctd\u003e25 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003ctd\u003e36 inches (approximately 91 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLamp type\u003c\/th\u003e\n\u003ctd\u003eT8 linear fluorescent, bi-pin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eColour temperature\u003c\/th\u003e\n\u003ctd\u003e10,000 K\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRated life\u003c\/th\u003e\n\u003ctd\u003eUp to 10,000 hours\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCountry of manufacture\u003c\/th\u003e\n\u003ctd\u003eEurope\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eContains mercury\u003c\/th\u003e\n\u003ctd\u003eYes — see Care and maintenance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer warranty\u003c\/th\u003e\n\u003ctd\u003e1 year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhich Zoo Med T8 tube do I need?\u003c\/h3\u003e\n\u003cp\u003eZoo Med builds three aquarium T8 lamps around three different jobs. They are not upgrades of one another.\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eLamp\u003c\/th\u003e\n\u003cth\u003eOutput\u003c\/th\u003e\n\u003cth\u003eBest for\u003c\/th\u003e\n\u003cth\u003eOn its own?\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOcean Sun\u003c\/th\u003e\n\u003ctd\u003e10,000 K white with a blue bias\u003c\/td\u003e\n\u003ctd\u003eMarine tanks, and freshwater keepers who want a cool crisp look\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUltra Sun\u003c\/th\u003e\n\u003ctd\u003e6,500 K daylight, CRI 98\u003c\/td\u003e\n\u003ctd\u003eAccurate fish and plant colour, planted freshwater\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCoral Sun\u003c\/th\u003e\n\u003ctd\u003ePeaked at 420 nm actinic blue\u003c\/td\u003e\n\u003ctd\u003eCoral fluorescence and blue supplementation\u003c\/td\u003e\n\u003ctd\u003eNo — pair it\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eIn a two-tube 36 inch hood, Ocean Sun plus \u003ca href=\"\/products\/coral-sun-actinic-420-tube-t8-36\"\u003eCoral Sun Actinic 420\u003c\/a\u003e is the standard marine pairing. Ocean Sun plus \u003ca href=\"\/products\/ultra-sun-trichromatic-t8-tube\"\u003eUltra Sun\u003c\/a\u003e gives a brighter, more colour-accurate freshwater result.\u003c\/p\u003e\n\n\u003ch3\u003eWhich Ocean Sun length do I need?\u003c\/h3\u003e\n\u003cp\u003eMatch the tube to the lamp holders in your fixture, not to the length of the tank. All five lengths share the 10,000 K output.\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003cth\u003eItem number\u003c\/th\u003e\n\u003cth\u003eWattage\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e15 inch\u003c\/th\u003e\n\u003ctd\u003eOL-15\u003c\/td\u003e\n\u003ctd\u003e14 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e18 inch\u003c\/th\u003e\n\u003ctd\u003eOL-18\u003c\/td\u003e\n\u003ctd\u003e15 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e24 inch\u003c\/th\u003e\n\u003ctd\u003eOL-24\u003c\/td\u003e\n\u003ctd\u003e17 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e36 inch\u003c\/th\u003e\n\u003ctd\u003eOL-36\u003c\/td\u003e\n\u003ctd\u003e25 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e48 inch\u003c\/th\u003e\n\u003ctd\u003eOL-48\u003c\/td\u003e\n\u003ctd\u003e32 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWill it fit my fixture?\u003c\/h3\u003e\n\u003cp\u003eThis is the 36 inch, 25 watt imperial lamp, Zoo Med item OL-36. Confirm your fixture is rated for a 25 W T8 tube.\u003c\/p\u003e\n\u003cp\u003eZoo Med runs a second, international T8 range sized in millimetres, in which the closest lamp is the 900 mm OL-36E at 30 W. A 900 mm 30 W fixture and a 36 inch 25 W lamp are not a guaranteed match.\u003c\/p\u003e\n\u003cp\u003eLamps and ballasts are paired by wattage. A mismatch shows up as short lamp life, flicker, or a tube that will not strike.\u003c\/p\u003e\n\u003cp\u003eIf you do not know what your hood is rated for, the tube it shipped with is the most reliable answer.\u003c\/p\u003e\n\n\u003ch3\u003eOutput data Zoo Med does not publish\u003c\/h3\u003e\n\u003cp\u003eZoo Med publishes colour temperature, wattage and rated life for the T8 range, but no PAR or PPFD figures at any depth. We will not estimate them, because an estimate is indistinguishable from a measurement once it is printed on a page.\u003c\/p\u003e\n\u003cp\u003eFor a fish-only or lightly planted tank that gap does not matter much — you are buying a viewing light. For a coral tank it matters a great deal, and the honest advice is to buy a fixture that publishes a PAR map, such as the \u003ca href=\"\/products\/red-sea-reefled-50\"\u003eRed Sea ReefLED 50\u003c\/a\u003e.\u003c\/p\u003e\n\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\u003eMarine fish-only and FOWLR aquariums running 36 inch T8 hoods\u003c\/li\u003e\n\u003cli\u003eFreshwater tanks where you want a cool, crisp look rather than a warm one\u003c\/li\u003e\n\u003cli\u003eReplacing a tired 10,000 K tube in an existing two-tube marine fixture\u003c\/li\u003e\n\u003cli\u003ePairing with an actinic tube for a deeper blue overall cast\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\u003eBeing the sole light over a demanding coral display — a 25 W T8 is not a modern reef fixture and has no published PAR data\u003c\/li\u003e\n\u003cli\u003eFixtures specified for a 900 mm 30 W tube, unless you have confirmed a 25 W lamp will run in them\u003c\/li\u003e\n\u003cli\u003eT5 and T12 fittings, which use different lamp holders\u003c\/li\u003e\n\u003cli\u003eKeepers who want warm, natural-daylight colour rendition. At 10,000 K reds are muted; the 6,500 K Ultra Sun with its CRI of 98 is the better choice there\u003c\/li\u003e\n\u003cli\u003ePlanted tanks chasing maximum growth. Zoo Med states it supports plant growth, but 10,000 K is a viewing choice more than a growing one\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCare and maintenance\u003c\/h3\u003e\n\u003cp\u003eReplace on hours run rather than on failure. Zoo Med's 10,000 hour rating works out to roughly two years and nine months at a 10 hour daily photoperiod, or about three years and five months at 8 hours. Those are arithmetic on Zoo Med's figure, not separate claims.\u003c\/p\u003e\n\u003cp\u003eA 10,000 K tube shifts visibly as it ages — the blue drains out and the tank starts to look yellow. If you have been meaning to replace it, that colour drift is the cue.\u003c\/p\u003e\n\u003cp\u003eClean salt creep off the glass when the tube is cool. This lamp contains mercury and must not go into household waste, so take spent tubes to a fluorescent lamp recycling drop-off. Zoo Med refers customers to lamprecycle.org.\u003c\/p\u003e\n\u003cp\u003eIt is 91 cm of thin glass. Inspect it for cracks before fitting.\u003c\/p\u003e\n\n\u003ch3\u003eRunning cost\u003c\/h3\u003e\n\u003cp\u003eThis lamp draws 25 W. At a 10 hour daily photoperiod that is about 91 kWh a year, and at 8 hours a day about 73 kWh. Both are arithmetic on the wattage, so scale them to your own photoperiod and electricity tariff.\u003c\/p\u003e\n\n\u003ch3\u003eGoes well with\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/coral-sun-actinic-420-tube-t8-36\"\u003eZoo Med Coral Sun Actinic 420 T8 36 inch\u003c\/a\u003e — the actinic partner. Pairing 10,000 K with 420 nm actinic in a two-tube hood is what both lamps are designed around.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/ultra-sun-trichromatic-t8-tube\"\u003eZoo Med Ultra Sun Trichromatic T8\u003c\/a\u003e — swap to 6,500 K, or run one of each, if muted reds under 10,000 K bother you.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/red-sea-reefled-50\"\u003eRed Sea ReefLED 50\u003c\/a\u003e — where to go if the tank becomes coral-driven and you need published output at depth.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/collections\/zoo-med\"\u003eBrowse the full Zoo Med range\u003c\/a\u003e for the other Ocean Sun lengths and the rest of the aquarium T8 lamps.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\n\u003cp\u003eZoo Med publishes a one year warranty on this lamp. It applies in addition to your rights under the Australian Consumer Law and does not limit them.\u003c\/p\u003e\n\u003cp\u003eGradual dimming and colour shift across the rated life are normal for a fluorescent lamp and are not a fault. A tube that will not strike from new is what the warranty covers.\u003c\/p\u003e\n\n\u003ch3\u003eCommon questions\u003c\/h3\u003e\n\u003ch4\u003eWhat does a 10,000 K aquarium tube look like?\u003c\/h4\u003e\n\u003cp\u003e10,000 K reads as crisp white with a distinct blue bias — cooler than daylight, without being blue like an actinic. It is the standard look for marine tanks and gives water depth and a slightly shimmering quality. Warm colours, particularly reds, are muted compared with a 6,500 K daylight lamp.\u003c\/p\u003e\n\u003ch4\u003eCan the Zoo Med Ocean Sun be used in a freshwater aquarium?\u003c\/h4\u003e\n\u003cp\u003eYes. Zoo Med lists the Ocean Sun 10,000 K for both marine and freshwater aquariums and states it supports aquatic plant growth. It gives freshwater tanks a cooler, cleaner look than a standard warm-white tube, though a planted tank chasing growth and colour accuracy is usually better served by the 6,500 K Ultra Sun.\u003c\/p\u003e\n\u003ch4\u003eWhat is the difference between Ocean Sun and Ultra Sun?\u003c\/h4\u003e\n\u003cp\u003eOcean Sun is a 10,000 K lamp built for the cool blue-white look of a marine tank. Ultra Sun is a 6,500 K trichromatic daylight lamp with a CRI of 98, built for colour accuracy and planted freshwater. Both run on their own, so the choice is about the look you want rather than which is brighter.\u003c\/p\u003e\n\u003ch4\u003eWhat wattage is the 36 inch Ocean Sun?\u003c\/h4\u003e\n\u003cp\u003eThe 36 inch Ocean Sun is 25 watts, listed by Zoo Med as item OL-36. Zoo Med's separate international range is sized in millimetres, where the 900 mm OL-36E is 30 watts. Check which one your fixture is rated for before ordering, as lamps and ballasts are matched by wattage.\u003c\/p\u003e\n\u003ch4\u003eHow do I dispose of a used aquarium fluorescent tube in Australia?\u003c\/h4\u003e\n\u003cp\u003eFluorescent tubes contain mercury and should not go into household waste. Take spent tubes to a lamp recycling drop-off point — many council waste facilities and lighting retailers accept them. Zoo Med refers customers to lamprecycle.org for disposal guidance.\u003c\/p\u003e","brand":"ZooMed","offers":[{"title":"Default Title","offer_id":55293327638819,"sku":"SUN21","price":47.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/SUN21.png?v=1782882763","url":"https:\/\/nicksaquariumoceanariumterrarium.com.au\/products\/ocean-sun-deep-water-tube-t8-36","provider":"Nicks Aquarium Oceanarium Terrarium","version":"1.0","type":"link"}