{"product_id":"red-sea-reefer-200-g3","title":"Red Sea REEFER 200 G3 — Rimless 52.8 gal Reef Aquarium with REEF-SPEC Sump and ReefATO+","description":"\u003cp\u003eThe \u003cstrong\u003eREEFER 200 G3\u003c\/strong\u003e is the smallest of Red Sea's straight REEFER systems to carry a full glass sump. On a 60 cm (23.6\") footprint you get a rimless ultra-clear tank, a marine-grade plywood cabinet, a 42 L (11.1 gal) REEF-SPEC sump and the ReefATO+ auto top-off — the plumbing logic of a large reef, folded into something that fits a living room wall.\u003c\/p\u003e\n\n\u003ch2\u003eThe ReefATO+, installed on video\u003c\/h2\u003e\n\u003cp\u003eThe ReefATO+ ships with the tank, and it is the piece that changes daily life the most: it replaces evaporated water and holds salinity steady while you are at work. Here is the install, filmed at our Laval store.\u003c\/p\u003e\n\u003cdiv style=\"max-width:340px;margin:20px auto;\"\u003e\n\u003cdiv style=\"position:relative;padding-bottom:177.78%;height:0;overflow:hidden;\"\u003e\n\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/WRicr45EG2k\" title=\"Installing the Red Sea ReefATO+ on a REEFER reef aquarium\" loading=\"lazy\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\"\u003e\u003c\/iframe\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eOfficial Red Sea figures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eTotal system water volume:\u003c\/strong\u003e 200 L (52.8 US gal)\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eDisplay tank volume:\u003c\/strong\u003e 158 L (41.7 US gal)\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eSump volume:\u003c\/strong\u003e 42 L (11.1 US gal)\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eDisplay tank (L × W × H):\u003c\/strong\u003e 60 × 57.5 × 53 cm (23.6 × 22.6 × 20.9 in)\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eTotal system height:\u003c\/strong\u003e 140 cm (55.1 in), excluding the light unit\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eUltra-clear glass:\u003c\/strong\u003e front 10 mm (0.4 in) · sides 12 mm (0.5 in) · bottom 10 mm (0.4 in) · back 8 mm (0.3 in)\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRim type:\u003c\/strong\u003e rimless, no internal brace, bevelled edges\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCabinet colours:\u003c\/strong\u003e white or black\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat the G3 generation changed\u003c\/h2\u003e\n\u003cp\u003eThe G3 rework is about flow. Red Sea claims up to 50% more circulation from redesigned piping, and the downpipe inlet is now a widened rectangle that breaks up turbulence — and with it, the sound of falling water. On top of that sits the \u003cstrong\u003eReefGate\u003c\/strong\u003e, a high-precision valve on the main downpipe that lets you dial in the overflow water level in small increments. Set it carefully and the system runs very discreetly; set it roughly and it will remind you with a permanent gurgle. It is worth spending fifteen minutes on it the day you fill the tank.\u003c\/p\u003e\n\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;max-width:100%;margin:20px 0;\"\u003e\n\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/KRltaSxVQc4\" title=\"Red Sea ReefGate high precision valve on the REEFER G3 reef aquarium\" loading=\"lazy\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0;\"\u003e\u003c\/iframe\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eWeight and clearances\u003c\/h2\u003e\n\u003cp\u003eThese are the numbers nobody checks before buying and everybody thinks about after. Red Sea rates the \u003cstrong\u003efull running system at 315 kg (694 lb)\u003c\/strong\u003e — that is what your floor carries. The empty glass tank alone is \u003cstrong\u003e40 kg (88 lb)\u003c\/strong\u003e, so plan on at least two people to lift it onto the cabinet.\u003c\/p\u003e\n\u003cp\u003eThe manual asks for a minimum of 10 cm (3.9 in) behind the tank for cabling and airflow, and recommends roughly 60 cm (23.6 in) on each side so you can reach the back. The cabinet top sits about 86 cm (33.9 in) off the floor. Red Sea also suggests keeping the room near 22 °C (71.6 °F), away from direct sun and air-conditioning vents.\u003c\/p\u003e\n\n\u003ch2\u003eWhat is in the box — and what is not\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIncluded:\u003c\/strong\u003e the glass tank, the flat-pack cabinet with adjustable feet, the ReefMat-Ready glass sump (optional refugium divider), the internal plumbing with return nozzle, and the ReefATO+ smart top-off with its temperature probe and leak detector.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNot included:\u003c\/strong\u003e lighting, return pump, skimmer, wave pumps and ReefMat. And one detail many listings quietly skip: \u003cstrong\u003eREEFER G3 systems come with no top-off water reservoir\u003c\/strong\u003e. The series manual says so in plain words. The ReefATO+ needs something to draw from — a jug works, a \u003ca href=\"\/en\/products\/red-sea-reefcan\"\u003eReefCan 18 or 40\u003c\/a\u003e tucks into the cabinet properly. If you read anywhere that a reservoir is built into this model's sump, that claim does not come from the manufacturer.\u003c\/p\u003e\n\n\u003ch2\u003eThe gear Red Sea itself fits to this model\u003c\/h2\u003e\n\u003cp\u003eRather than invent \"recommended setups\", here is what Red Sea packs into its own REEFER MAX 200 G3 — the manufacturer's own sizing for this exact volume:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 × \u003ca href=\"\/en\/products\/reefled-g2-eclairage-led\"\u003eReefLED G2 115\u003c\/a\u003e — the unit specified for a tank this long\u003c\/li\u003e\n\u003cli\u003e1 × \u003ca href=\"\/en\/products\/red-sea-reefwave%C2%AE-silent-smart-powerful-25\"\u003eReefWave 25\u003c\/a\u003e (7,500 L\/h · 1,981 gph) for circulation\u003c\/li\u003e\n\u003cli\u003e1 × \u003ca href=\"\/en\/products\/reefrun-g2-dc-pump\"\u003eReefRun G2 4000\u003c\/a\u003e (2,000–4,000 L\/h · 530–1,060 gph) as the return pump\u003c\/li\u003e\n\u003cli\u003e1 × \u003ca href=\"\/en\/products\/red-sea-300dc-reefer-skimmer\"\u003eRSK 300 DC\u003c\/a\u003e (water flow 1,000 L\/h · 264 gph, air flow 500 L\/h · 132 gph)\u003c\/li\u003e\n\u003cli\u003e1 × \u003ca href=\"\/en\/products\/red-sea-reefmat-250\"\u003eReefMat 250\u003c\/a\u003e, which takes the place of the filter sock drawer\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNothing forces you to buy it all at once, and nothing forces you to stay inside one brand. But if you are unsure about sizing, that list is the manufacturer's answer rather than an opinion.\u003c\/p\u003e\n\n\u003ch2\u003eSump and mechanical filtration\u003c\/h2\u003e\n\u003cp\u003eSurface water leaves through removable combs, drops down the main pipe metered by the ReefGate, then passes the mechanical filtration module — 225 micron socks or media cups, your choice. Red Sea suggests keeping at least three sets of socks in rotation, so one set dries after washing while another is in service. That module lifts out entirely to make room for a ReefMat, with no sump modification. A bubble trap with a coarse sponge protects the return pump, and the constant-level pump chamber is the one the ReefATO+ watches.\u003c\/p\u003e\n\n\u003ch2\u003eOur advice\u003c\/h2\u003e\n\u003cp\u003eThis is a nice little aquarium — practical, it does not eat your floor space, and it is a good system for a first step into reef keeping: easy to understand, easy to maintain.\u003c\/p\u003e\n\u003cp\u003eMy advice before you commit to a small tank like this one: think hard about what you actually want. It is always the same story with small aquariums — people often have the budget for something bigger, but they pick small out of caution, or for all sorts of reasons, and they quickly wish they had gone larger. If you want small and you love small, that is wonderful. But if you are not sure, take the time to weigh your budget, the dimensions and the space you have — because with a small aquarium, you run out of room fast. The \u003ca href=\"\/en\/products\/red-sea-reefer-g2-250-black\"\u003eREEFER 250 G3\u003c\/a\u003e is the next size up, and it is worth comparing the two before you decide.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e— Stéphane, Aquarium ReefSolution\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch2\u003eWe build the system with you\u003c\/h2\u003e\n\u003cp\u003eA reef system is not bought in a single order, and that is perfectly fine. Write to us or come to the Laval store with your budget and your project: we work out the configuration that matches what you expect from the tank, starting with the essentials and adding the rest at your own pace. We do this every day, and it costs nothing.\u003c\/p\u003e\n\n\u003ch2\u003eWarranty\u003c\/h2\u003e\n\u003cp\u003eREEFER G3 systems carry a 3-year worldwide warranty. Canada is one of the countries where registering the system within 90 days of purchase adds 2 more years at no charge — 5 years in total. Coverage applies to the glass tank and the cabinet, is limited to the original owner and requires proof of purchase. Equipment supplied with the system, such as the ReefATO+, carries its own separate warranty.\u003c\/p\u003e\n\n\u003ch2\u003eWhy buy from ReefSolution\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAuthorized Red Sea dealer in Canada, with factory support behind the warranty\u003c\/li\u003e\n\u003cli\u003ePhysical store in Laval, Quebec: see REEFER systems running before you commit\u003c\/li\u003e\n\u003cli\u003eShipping across Canada. Free shipping available depending on order value.\u003c\/li\u003e\n\u003cli\u003eAfter-sales support in English and French\u003c\/li\u003e\n\u003cli\u003eFor top-off water, an \u003ca href=\"\/en\/products\/aquaticlife-classic-100-gpd-stage-ro-unit\"\u003eRO\/DI unit\u003c\/a\u003e is the one purchase nobody plans and everybody ends up making\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\n\u003ch3\u003eHow many gallons is the Red Sea REEFER 200 G3?\u003c\/h3\u003e\n\u003cp\u003eThe complete system holds 200 L, or 52.8 US gallons according to Red Sea's own configurator. The display tank alone holds 158 L (41.7 US gal) and the sump 42 L (11.1 US gal).\u003c\/p\u003e\n\n\u003ch3\u003eIs the REEFER 200 G3 an all in one reef tank?\u003c\/h3\u003e\n\u003cp\u003eNot in the usual sense. It ships as a complete water-management platform — tank, cabinet, sump, plumbing and the ReefATO+ top-off — but lighting, return pump, skimmer, wave pumps and roller filter are sold separately. Red Sea's fully equipped version is sold under the REEFER MAX name; on the standard model, the equipment choice is yours.\u003c\/p\u003e\n\n\u003ch3\u003eWhat return pump does a REEFER 200 G3 need?\u003c\/h3\u003e\n\u003cp\u003eThe Red Sea series manual recommends a ReefRun G2 4000, rated 2,000 to 4,000 L\/h (530 to 1,060 gph). It is not included with the system.\u003c\/p\u003e\n\n\u003ch3\u003eIs the REEFER 200 G3 rimless?\u003c\/h3\u003e\n\u003cp\u003eYes. Across the straight REEFER range, models up to the 350 are rimless with bevelled edges; the internal brace starts at the 425. Aluminium front reinforcement applies only from the 525 upward.\u003c\/p\u003e\n\n\u003ch3\u003eIs a REEFER 200 G3 a good nano reef tank for a beginner?\u003c\/h3\u003e\n\u003cp\u003eIt is a solid starting point: sump, overflow and top-off are engineered together, which avoids the improvised plumbing that causes most early surprises. The real question is not difficulty, it is volume — 158 L fills up quickly once corals and fish start appealing to you. Read our advice above before deciding.\u003c\/p\u003e\n\n\u003ch3\u003eHow much does a REEFER 200 G3 weigh when full?\u003c\/h3\u003e\n\u003cp\u003eRed Sea rates the complete running system at 315 kg (694 lb). That is the load your floor carries, and it is worth checking before buying if the tank is going upstairs.\u003c\/p\u003e\n","brand":"Red Sea Reefer","offers":[{"title":"White","offer_id":43446639001771,"sku":"R45119","price":2699.99,"currency_code":"CAD","in_stock":true},{"title":"Black","offer_id":43446639034539,"sku":"R45118","price":2699.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0513\/7108\/1899\/files\/product-20251208-a666517d5bfcb2793d55e5fef9f69bb3.png?v=1785121517","url":"https:\/\/reefsolution.com\/en\/products\/red-sea-reefer-200-g3","provider":"Aquarium ReefSolution inc.","version":"1.0","type":"link"}