{"product_id":"red-sea-reefer-rsk-900-protein-skimmer-up-to-740-gallons","title":"Red Sea REEFER RSK-900 Protein Skimmer – Up to 740 Gallons","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003eRed Sea REEFER RSK-900 Protein Skimmer\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003e\u003ciframe width=\"894\" height=\"603\" src=\"https:\/\/www.youtube.com\/embed\/ywI5wiuWq-E\" title=\"Red Sea Reefer Skimmer - Product Showcase\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eBring powerful REEF-SPEC filtration to large reef and marine aquariums with the \u003cstrong\u003eRed Sea REEFER RSK-900 Protein Skimmer\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eDesigned for large, heavily stocked systems, the RSK-900 combines a high-performance \u003cstrong\u003eSicce PSK-1200 pump\u003c\/strong\u003e, optimized air and water flow, an efficient diffusion chamber, precision adjustment, and flexible sump installation to provide consistent removal of dissolved organic waste.\u003c\/p\u003e\n\u003cp\u003eRed Sea rates the RSK-900 for systems up to \u003cstrong\u003e240 gallons for SPS reefs, 500 gallons for mixed reefs, and 740 gallons for fish-only systems\u003c\/strong\u003e. \u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eHigh-Performance REEF-SPEC Skimming\u003c\/h3\u003e\n\u003cp\u003eThe RSK-900 is engineered around Red Sea's REEF-SPEC criteria, balancing water throughput, air-to-water ratio, and contact time to efficiently remove organic waste from aquarium water.\u003c\/p\u003e\n\u003cp\u003eThe included Sicce PSK-1200 delivers:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAir Flow:\u003c\/strong\u003e 900 LPH \/ 235 GPH\u003cbr\u003e\u003cstrong\u003eWater Flow:\u003c\/strong\u003e 2,000 LPH \/ 530 GPH\u003c\/p\u003e\n\u003cp\u003eThe pump, venturi, diffuser, and reaction chamber work together to create a dense mixture of fine bubbles and maximize contact with aquarium water. \u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eBuilt for Large Aquariums\u003c\/h3\u003e\n\u003cp\u003eRed Sea rates the RSK-900 based on aquarium type and expected organic load:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSPS \/ High Demand Reef:\u003c\/strong\u003e Up to 240 gallons\u003cbr\u003e\u003cstrong\u003eMixed Reef:\u003c\/strong\u003e Up to 500 gallons\u003cbr\u003e\u003cstrong\u003eFish Only:\u003c\/strong\u003e Up to 740 gallons\u003c\/p\u003e\n\u003cp\u003eThat makes it an excellent choice for large reef displays, heavily stocked marine aquariums, predator systems, and other high-bioload applications. \u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eQuiet Operation\u003c\/h3\u003e\n\u003cp\u003eThe RSK-900 is designed to deliver serious skimming performance without turning the sump into a machine room.\u003c\/p\u003e\n\u003cp\u003eRed Sea incorporates vibration-reducing components and air silencing into the design to help reduce operational noise while maintaining strong air and water movement.\u003c\/p\u003e\n\u003ch3\u003eFlexible Sump Installation\u003c\/h3\u003e\n\u003cp\u003eThree assembly configurations allow the skimmer's pump inlet and regulation valve to be repositioned to better fit different sump layouts.\u003c\/p\u003e\n\u003cp\u003eThis flexibility is particularly valuable in larger systems where return pumps, reactors, dosing lines, and other equipment may already occupy significant sump space.\u003c\/p\u003e\n\u003ch3\u003ePrecision Adjustment\u003c\/h3\u003e\n\u003cp\u003eA \u003cstrong\u003eprecision geared regulation valve\u003c\/strong\u003e allows fine adjustment of the internal water level, helping you dial in the skimmer for the desired foam consistency and skimmate production.\u003c\/p\u003e\n\u003cp\u003eThe design also incorporates easy pump access and a collection cup drainage system to simplify routine maintenance.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eModel:\u003c\/strong\u003e REEFER RSK-900\u003cbr\u003e\u003cstrong\u003ePump:\u003c\/strong\u003e Sicce PSK-1200\u003cbr\u003e\u003cstrong\u003eAir Flow:\u003c\/strong\u003e 900 LPH \/ 235 GPH\u003cbr\u003e\u003cstrong\u003eWater Flow:\u003c\/strong\u003e 2,000 LPH \/ 530 GPH\u003cbr\u003e\u003cstrong\u003eHeight:\u003c\/strong\u003e 23\" \/ 59 cm\u003cbr\u003e\u003cstrong\u003eRecommended Water Depth:\u003c\/strong\u003e 8–9\" \/ 20–24 cm \u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eProduct Highlights\u003c\/h3\u003e\n\u003cp\u003ePowerful protein skimmer for large marine aquariums\u003c\/p\u003e\n\u003cp\u003eRated up to 740 gallons depending on bioload\u003c\/p\u003e\n\u003cp\u003eSicce PSK-1200 pump\u003c\/p\u003e\n\u003cp\u003e900 LPH air intake\u003c\/p\u003e\n\u003cp\u003e2,000 LPH water flow\u003c\/p\u003e\n\u003cp\u003eREEF-SPEC performance design\u003c\/p\u003e\n\u003cp\u003ePrecision geared adjustment valve\u003c\/p\u003e\n\u003cp\u003eQuiet operation\u003c\/p\u003e\n\u003cp\u003eThree sump installation configurations\u003c\/p\u003e\n\u003cp\u003eQuick-release pump access\u003c\/p\u003e\n\u003cp\u003eCollection cup drainage capability\u003c\/p\u003e\n\u003cp\u003eDesigned for large reef and high-bioload systems\u003c\/p\u003e\n\u003ch3\u003eImportant Model Note\u003c\/h3\u003e\n\u003cp\u003eThis is the \u003cstrong\u003eREEFER RSK-900 AC Protein Skimmer\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIt is different from Red Sea's newer \u003cstrong\u003eREEFER DC Skimmer 900\u003c\/strong\u003e, which adds a variable-speed DC pump, Self-Leveling functionality, ReefBeat integration, and requires a ReefRun Dual Controller. \u003cspan class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThat's worth stating clearly since you're carrying the newer DC models too.\u003c\/p\u003e\n\u003ch3\u003eWhy Buy From Infinity and Beyond Aquatics?\u003c\/h3\u003e\n\u003cp\u003eInfinity and Beyond Aquatics offers premium filtration equipment for everything from nano reefs to large marine systems.\u003c\/p\u003e\n\u003cp\u003eShop protein skimmers, pumps, controllers, filtration media, lighting, dosing equipment, testing, and other reef essentials from leading aquarium brands, all in one place.\u003c\/p\u003e\n\u003ch3\u003eShipping\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eFREE Standard Shipping\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOrders typically process within \u003cstrong\u003e1–3 business days\u003c\/strong\u003e. Tracking information will be provided once your order ships.\u003c\/p\u003e\n\u003cp\u003eProducts within the same order may arrive separately depending on availability and fulfillment location.\u003c\/p\u003e","brand":"SWA","offers":[{"title":"Default Title","offer_id":53223842545973,"sku":"rsk900","price":619.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0964\/2252\/7285\/files\/m234__37753.jpg?v=1785283546","url":"https:\/\/infinityandbeyondaquatics.com\/products\/red-sea-reefer-rsk-900-protein-skimmer-up-to-740-gallons","provider":"Infinity and Beyond Aquatics ","version":"1.0","type":"link"}