{"product_id":"red-sea-reefer-750-g3-black-cabinet","title":"Red Sea Reefer 750 G3 - Black Cabinet","description":"\u003ch2\u003eRed Sea Reefer 750 G3 - Black Cabinet\u003c\/h2\u003e\n\u003cp\u003eThe Red Sea Reefer 750 G3 - Black Cabinet is a premium 750 litre \/ 198.1 gallon reef-ready aquarium and cabinet system for aquarists who want the largest classic REEFER G3 platform with a 180 cm euro-braced ultra-clear display and black marine-spec cabinet.\u003c\/p\u003e\n\u003cp\u003eThis flagship-size base REEFER G3 system provides the tank, cabinet, sump infrastructure, extension sump, plumbing, overflow, ReefGate precision drain control, ReefMat-ready mechanical filtration, and integrated ReefATO+ smart top-off foundation while leaving the final equipment package open for custom selection. It is built for serious reef keepers planning a large mixed reef, showpiece coral display, SPS-capable system, or premium long-format aquarium where lighting, flow, skimming, return pumps, dosing, and automation need to be chosen intentionally.\u003c\/p\u003e\n\u003ch3\u003eRed Sea REEFER 750 G3 Black Reef System\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLargest classic REEFER G3 model:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 750 G3 is the largest system in the standard REEFER G3 family, giving reef keepers a major display footprint without moving into the REEFER-S line.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e180 cm reef display:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe long aquarium provides excellent room for fish movement, multiple coral zones, large aquascape structures, and more natural reef proportions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e750 litre total system volume:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 198.1 gallon water volume supports high stability, more equipment planning flexibility, and a stronger foundation for mature coral growth.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlack cabinet finish:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe black cabinet creates a bold showpiece presentation and keeps the focus on coral colour, lighting, and aquascape structure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase-system freedom:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eReturn pumps, lighting, skimmer, heater, wavemakers, dosing, and automation are selected separately for a tailored large reef build.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-return planning:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 750 is designed around a dual-return configuration, making flow and return-pump planning especially important before setup.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e180 cm Euro-Braced Ultra-Clear Display\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e600 litre display volume:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe main display gives reef keepers a substantial canvas for larger coral colonies, showpiece aquascapes, and carefully selected reef fish.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e180 x 65 x 60 cm dimensions:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe long 180 cm length, broad 65 cm depth, and 60 cm height create a dramatic display with real room for layered reef structure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e19 mm glass specification:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe REEFER 750 G3 is listed with 19 mm front, side, bottom, and back glass.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEuro-braced large-system strength:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe braced construction supports the large footprint while keeping the top profile clean and professional.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-clear viewing panels:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eLow-iron glass improves viewing clarity across the long display and helps coral colours look cleaner.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlagship room presence:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 750 G3 has the visual impact needed for large living rooms, offices, showrooms, and dedicated reef installations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eG3 Dual-Return Water Management\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHydrodynamically improved plumbing:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe G3 water-management system is designed for better circulation efficiency and higher-performing movement through the aquarium and sump.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuiet rectangular downflow:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe enlarged downflow inlet helps reduce turbulence in the overflow for quieter operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReefGate precision control:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe bespoke gate valve allows fine adjustment of the main drain to stabilize water level and reduce drain noise.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSurface-skimming overflow:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe central overflow includes a removable surface skimmer for easier maintenance and cleaner water-surface management.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual return layout:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 750 uses a dual-return approach for better distribution across the long display when matched with appropriate return equipment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFactory-designed plumbing:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ePre-assembled plumbing gives the large system a clean, organized water path and reduces the uncertainty of custom plumbing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eLarge Sump System and ReefATO+ Control\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e150 litre sump volume:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe high-capacity sump provides extensive space for skimming, mechanical filtration, media, reactors, dosing lines, probes, return equipment, and maintenance access.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlass extension sump included:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe REEFER 750 G3 includes a glass extension sump, giving this flagship model additional sump flexibility compared with smaller REEFER G3 systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReefMat-ready filtration:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe removable mechanical chamber includes micron socks and media cups and is ready for optional automatic fleece-roll filtration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated ReefATO+:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eReefATO+ helps stabilize sump water level and salinity while adding temperature monitoring and leak detection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdvanced filtration planning:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe large sump footprint supports a wide range of protein skimmers, media reactors, nutrient-export methods, and controller layouts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt for serious reef equipment:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 750 G3 gives advanced aquarists the space and infrastructure needed for a fully featured large reef system.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBlack Cabinet with Aluminum Support Structure\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine-spec plywood cabinet:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe black cabinet is built for aquarium use with moisture-resistant construction, leveling feet, stainless steel hinges, and a finished exterior.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFront aluminum supports:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eRed Sea reinforces 525 models and above with front aluminum cabinet supports, especially important for long-span systems like the 750.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge equipment area:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe cabinet gives room for sump equipment, dual return planning, dosing containers, controller hardware, and future upgrades.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-contrast display look:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe black finish visually anchors the 180 cm aquarium and makes reef lighting and coral colour stand out.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMatched structural fit:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe included stand is designed for the aquarium footprint and loaded system weight.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProfessional presentation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe black 750 G3 is well suited to serious home reefs, display installations, offices, and customer-facing environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eRed Sea Reefer 750 G3 Black Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal system volume:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e750 L \/ 198.1 gal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisplay volume:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e600 L \/ 158.5 gal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSump volume:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e150 L \/ 39.6 gal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisplay dimensions:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e180 cm L x 65 cm W x 60 cm H \/ approx. 70.9 x 25.6 x 23.6 in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal height with cabinet:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e148 cm \/ approx. 58.3 in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlass thickness:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e19 mm front glass, 19 mm side glass, 19 mm bottom glass, and 19 mm back glass.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisplay format:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEuro-braced ultra-clear glass aquarium.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCabinet:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eBlack marine-spec plywood cabinet with leveling feet and front aluminum supports.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFiltration:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eREEF-SPEC sump with mechanical chamber, micron socks, media cups, glass extension sump, ReefMat-ready layout, and ReefATO+.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended return pump:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDual returns with 2 x Red Sea ReefRun G2 12000, sold separately.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLighting:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSold separately and should be selected for full 180 cm x 65 cm reef coverage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplication Notes for the REEFER 750 G3\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest use:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIdeal for large mixed reefs, SPS-capable systems, LPS coral displays, soft coral aquariums, and showpiece reef installations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEquipment planning:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eChoose dual return pumps, lighting, skimmer, heater, wavemakers, dosing equipment, and controller hardware before filling the system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLighting planning:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 180 cm length and 65 cm depth require a multi-fixture lighting plan for even coral coverage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow planning:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDedicated wavemakers are essential for reef circulation beyond the dual return system, especially in SPS or dense mixed reefs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFiltration planning:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe large sump and extension sump provide strong flexibility for skimming, roller filtration, media, probes, dosing, and nutrient export.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot included:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eLighting, return pumps, protein skimmer, heater, wavemakers, livestock, rock, sand, salt, optional ReefMat, dosing equipment, and test kits are sold separately unless otherwise stated.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Red Sea","offers":[{"title":"Default Title","offer_id":52422530072874,"sku":"AQ-RSXL750B3","price":8299.99,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1001\/9792\/5162\/files\/redseareefer750_g3_black-1.webp?v=1787937608","url":"https:\/\/biggleaquarium.ca\/products\/red-sea-reefer-750-g3-black-cabinet","provider":"Biggle Aquarium","version":"1.0","type":"link"}