{"product_id":"red-sea-reefer-g3-aquarium-system-s-550","title":"Red Sea REEFER G3 Aquarium System S-550","description":"\u003cp\u003e\u003cstrong\u003eWide and shallow, not long and deep.\u003c\/strong\u003e The Red Sea REEFER G3 S-550 is a 549-litre rimless reef aquarium system built on a shallower, wider footprint than the numbered REEFER G3 range — display tank, aluminium cabinet and a large sump, with Red Sea's ReefATO+ auto top-off already fitted. A return pump, protein skimmer and lighting are not included — you choose and fit those yourself.\u003c\/p\u003e\n\n\u003ch3\u003eKey features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide, shallow rimless display\u003c\/strong\u003e — 448 L display volume in a 120 × 68 × 65 cm footprint, giving more width and floor-level viewing area than the same-length 350 without adding length.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e19 mm ultra-clear glass\u003c\/strong\u003e — thicker front glass than the numbered 300\/350 models, reflecting the S-550's greater width and water pressure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReefATO+ auto top-off included\u003c\/strong\u003e — Red Sea's electronic top-off system, with temperature monitoring and leak detection, comes standard rather than as an upgrade.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAluminium cabinet\u003c\/strong\u003e — a different construction to the laminated-plywood cabinets on the numbered G3 range, with adjustable levelling feet, in black or white.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge 101 L sump with a slide-out control panel\u003c\/strong\u003e — pre-glued plumbing and room for equipment, with a slide-out panel for access to controls.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e549 L total system volume\u003c\/strong\u003e — the figure to use for salt mix, dosing and medication calculations, not the smaller 448 L display-only figure.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eREEFER G3 S-550 aquarium, rimless ultra-clear glass with internal overflow\u003c\/li\u003e\n\u003cli\u003eMarine-spec aluminium cabinet, in the colour shown\u003c\/li\u003e\n\u003cli\u003eGlass sump with pre-glued plumbing and slide-out control panel\u003c\/li\u003e\n\u003cli\u003eReefATO+ auto top-off system, with temperature monitoring and leak detection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eNot included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eReturn pump\u003c\/li\u003e\n\u003cli\u003eProtein skimmer\u003c\/li\u003e\n\u003cli\u003eLighting\u003c\/li\u003e\n\u003cli\u003eReefMat fleece roller filter\u003c\/li\u003e\n\u003cli\u003eHeater\u003c\/li\u003e\n\u003cli\u003eSalt, substrate, aquascape and livestock\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpec\u003c\/th\u003e\n\u003cth\u003eREEFER G3 S-550\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay volume\u003c\/td\u003e\n\u003ctd\u003e448 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSump volume\u003c\/td\u003e\n\u003ctd\u003e101 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal system volume\u003c\/td\u003e\n\u003ctd\u003e549 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay dimensions (L × W × H)\u003c\/td\u003e\n\u003ctd\u003e120 × 68 × 65 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal height with cabinet\u003c\/td\u003e\n\u003ctd\u003e153 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGlass\u003c\/td\u003e\n\u003ctd\u003e19 mm, ultra-clear, rimless\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCabinet\u003c\/td\u003e\n\u003ctd\u003eMarine-spec aluminium, black or white, adjustable levelling feet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverflow\u003c\/td\u003e\n\u003ctd\u003eInternal, silent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAuto top-off\u003c\/td\u003e\n\u003ctd\u003eReefATO+ included — temperature monitoring, leak detection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGeneration\u003c\/td\u003e\n\u003ctd\u003eG3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWater type\u003c\/td\u003e\n\u003ctd\u003eMarine \/ reef\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eREEFER G3 versus REEFER MAX\u003c\/h3\u003e\n\u003cp\u003eThis listing is the base G3-S platform: tank, aluminium cabinet, sump and auto top-off, with your choice of pump, skimmer and light fitted afterwards. Red Sea's REEFER MAX line ships as a complete kit, with a pump, skimmer and lighting already fitted — our \u003ca href=\"\/products\/red-sea-reefer-max-525-g3\"\u003eMax 525 G3\u003c\/a\u003e is an example of what that inclusion level looks like. If you want a system that's ready to run on day one, check a MAX model rather than assuming this one includes it.\u003c\/p\u003e\n\n\u003ch3\u003eWhich REEFER G3 do I need?\u003c\/h3\u003e\n\u003cp\u003eThe S-550 breaks the length ladder the other four models follow. It shares the 350's 120 cm length but is significantly wider and deeper, giving more display volume than the 625 in a shorter footprint — the shape to choose when width matters more than length, such as a room where the tank sits across a shorter wall.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eTotal volume\u003c\/th\u003e\n\u003cth\u003eDisplay volume\u003c\/th\u003e\n\u003cth\u003eSump volume\u003c\/th\u003e\n\u003cth\u003eDisplay dimensions (L×W×H)\u003c\/th\u003e\n\u003cth\u003eTotal height\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eREEFER G3 300\u003c\/td\u003e\n\u003ctd\u003e301 L\u003c\/td\u003e\n\u003ctd\u003e247 L\u003c\/td\u003e\n\u003ctd\u003e57 L\u003c\/td\u003e\n\u003ctd\u003e90 × 57 × 55 cm\u003c\/td\u003e\n\u003ctd\u003e142 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eREEFER G3 350\u003c\/td\u003e\n\u003ctd\u003e342 L\u003c\/td\u003e\n\u003ctd\u003e273 L\u003c\/td\u003e\n\u003ctd\u003e69 L\u003c\/td\u003e\n\u003ctd\u003e120 × 50 × 53 cm\u003c\/td\u003e\n\u003ctd\u003e140 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eREEFER G3 S-550\u003c\/td\u003e\n\u003ctd\u003e549 L\u003c\/td\u003e\n\u003ctd\u003e448 L\u003c\/td\u003e\n\u003ctd\u003e101 L\u003c\/td\u003e\n\u003ctd\u003e120 × 68 × 65 cm\u003c\/td\u003e\n\u003ctd\u003e153 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eREEFER G3 625\u003c\/td\u003e\n\u003ctd\u003e620 L\u003c\/td\u003e\n\u003ctd\u003e497 L\u003c\/td\u003e\n\u003ctd\u003e121 L\u003c\/td\u003e\n\u003ctd\u003e150 × 65 × 60 cm\u003c\/td\u003e\n\u003ctd\u003e148 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eREEFER G3 750\u003c\/td\u003e\n\u003ctd\u003e750 L\u003c\/td\u003e\n\u003ctd\u003e600 L\u003c\/td\u003e\n\u003ctd\u003e151 L\u003c\/td\u003e\n\u003ctd\u003e180 × 65 × 60 cm\u003c\/td\u003e\n\u003ctd\u003e148 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eWhat changed in G3\u003c\/h3\u003e\n\u003cp\u003eEvery G3 model, including the S-550, ships with Red Sea's ReefATO+ electronic auto top-off as standard, with temperature monitoring and leak detection, rather than as an add-on. The S-550 uses an aluminium cabinet rather than the laminated-plywood cabinets on the numbered 300–750 range, and adds a slide-out control panel to the sump.\u003c\/p\u003e\n\n\u003ch3\u003eSuitable for, and not suitable for\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eSuitable for:\u003c\/strong\u003e reef keepers who want a wide, shallow display — more floor-level viewing area and width for aquascaping — rather than a long, narrower footprint, and who are sourcing their own return pump, skimmer and lighting.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e anyone who wants a single purchase that includes a skimmer, return pump and lighting — that's Red Sea's MAX range, not this listing. Also not the right pick if a longer feature-wall footprint suits the room better than a wide one — the 625 or 750 cover that shape instead.\u003c\/p\u003e\n\n\u003ch3\u003eWarranty and delivery\u003c\/h3\u003e\n\u003cp\u003eRed Sea's REEFER range carries a manufacturer's warranty of 3 years standard, extendable to 5 years total with registration within 90 days of purchase — provided in addition to your rights under Australian Consumer Law. Mains-powered components, including the ReefATO+ unit, run on 240 V \/ 50 Hz Australian supply. Red Sea does not publish an empty or filled weight for this system; as a floor-loading guide, the water alone in a full 549 L system weighs around 549 kg, before the glass, cabinet, sump, aquascape and livestock are counted. Get a professional opinion on your floor's load rating before committing to a spot, particularly upstairs or over an unsupported span. This is a large glass and cabinet item, typically shipped as a drop-ship item direct from the supplier rather than standard courier; the cabinet requires assembly.\u003c\/p\u003e\n\n\u003ch3\u003eGoes well with\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/red-sea-reefer-dc-skimmer-600-w-o-controller\"\u003eRed Sea Reefer DC Skimmer 600\u003c\/a\u003e — the skimmer Red Sea recommends alongside the S-550's sump on complete kits at this size.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/red-sea-coral-pro-salt-20kg-refill-box-600ltr\"\u003eRed Sea Coral Pro Salt 20kg Refill Box\u003c\/a\u003e — mixes enough saltwater for water changes on a system this size.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/red-sea-seawater-refractometer\"\u003eRed Sea Seawater Refractometer\u003c\/a\u003e — for checking salinity before the tank goes live.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/red-sea-alkalinity-pro-reagent-refill-kit\"\u003eRed Sea Alkalinity Pro Reagent Refill Kit\u003c\/a\u003e — alkalinity is the parameter reef keepers check most often once stocked.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCommon questions\u003c\/h3\u003e\n\u003ch4\u003eDoes the REEFER G3 S-550 include a return pump or skimmer?\u003c\/h4\u003e\n\u003cp\u003eNo. This listing is the aquarium, sump, aluminium cabinet and ReefATO+ auto top-off only. A return pump and protein skimmer are sold separately, so you can size them to your stocking plan.\u003c\/p\u003e\n\u003ch4\u003eWhat does the 549 L figure on this listing mean?\u003c\/h4\u003e\n\u003cp\u003eIt's the total system volume — display plus sump combined. Use that figure, not the 448 L display-only volume, for salt mix and dosing calculations.\u003c\/p\u003e\n\u003ch4\u003eHow is the S-550 different from the numbered REEFER G3 models?\u003c\/h4\u003e\n\u003cp\u003eIt's a wider, shallower shape rather than a longer one — 120 cm long like the 350, but significantly wider and deeper — and it uses an aluminium cabinet instead of the laminated-plywood cabinets on the 300–750 range.\u003c\/p\u003e\n\u003ch4\u003eWhat skimmer fits the S-550's sump?\u003c\/h4\u003e\n\u003cp\u003eRed Sea pairs the S-550 with its Reefer DC Skimmer 600 on complete kits at this size — a reasonable starting point, though your final choice should match your actual bioload.\u003c\/p\u003e\n\u003ch4\u003eHow much does a full system weigh, and will my floor take it?\u003c\/h4\u003e\n\u003cp\u003eRed Sea doesn't publish a tank or cabinet weight for this model. The water alone in a full 549 L system weighs around 549 kg — worth checking your floor's load rating for a system this size, especially upstairs.\u003c\/p\u003e","brand":"RedSea","offers":[{"title":"Default","offer_id":55269640634659,"sku":null,"price":7140.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/7236\/5347\/files\/Red-Sea-REEFER-G3-Aquarium-System-S-550-Black-Inside.jpg?v=1782107649","url":"https:\/\/nicksaquariumoceanariumterrarium.com.au\/products\/red-sea-reefer-g3-aquarium-system-s-550","provider":"Nicks Aquarium Oceanarium Terrarium","version":"1.0","type":"link"}