{"product_id":"marina-slim-power-filter","title":"Marina Slim Power Filter","description":"\u003cstyle\u003e\n.msf-pd{font-size:0.98em;line-height:1.5;}\n.msf-pd h3{margin:16px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #666;padding-left:8px;}\n.msf-cross{margin:0 0 14px;}\n.msf-feat{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:10px;margin:8px 0 4px;}\n.msf-feat div{border:1px solid #ddd;border-radius:8px;padding:10px 12px;background:#fafafa;}\n.msf-feat strong{display:block;margin-bottom:2px;}\ntable.msf-cmp{border-collapse:collapse;width:100%;margin:6px 0 4px;font-size:0.95em;}\ntable.msf-cmp th,table.msf-cmp td{border:1px solid #ddd;padding:7px 10px;text-align:left;vertical-align:top;}\ntable.msf-cmp thead th{background:#666;color:#fff;}\ntable.msf-cmp th[scope=\"row\"]{background:#f6f6f6;font-weight:600;}\ntable.msf-spec{border-collapse:collapse;width:100%;margin:4px 0;font-size:0.95em;}\ntable.msf-spec th,table.msf-spec td{border:1px solid #ddd;padding:6px 10px;text-align:left;}\ntable.msf-spec th{background:#f6f6f6;font-weight:600;width:44%;}\n.msf-radio{position:absolute;opacity:0;pointer-events:none;}\n.msf-tabs{display:flex;gap:6px;flex-wrap:wrap;margin:8px 0 0;}\n.msf-tabs label{cursor:pointer;padding:8px 18px;border:1px solid #ccc;border-radius:8px;background:#f4f4f4;color:#555;font-weight:600;font-size:0.95em;}\n.msf-panels{margin-top:10px;border:1px solid #ddd;border-radius:8px;padding:14px 16px;}\n.msf-panel{display:none;}\n#msf-t1:checked ~ .msf-tabs label[for=\"msf-t1\"],#msf-t2:checked ~ .msf-tabs label[for=\"msf-t2\"],#msf-t3:checked ~ .msf-tabs label[for=\"msf-t3\"]{background:#666;color:#fff;border-color:#666;}\n#msf-t1:checked ~ .msf-panels .msf-p1,#msf-t2:checked ~ .msf-panels .msf-p2,#msf-t3:checked ~ .msf-panels .msf-p3{display:block;}\n.msf-faq{margin:4px 0;}\n.msf-faq summary{cursor:pointer;font-weight:600;padding:8px 0;border-bottom:1px solid #eee;}\n.msf-faq p{margin:8px 0 12px;}\n\u003c\/style\u003e\n\u003cdiv class=\"msf-pd\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eMarina Slim Power Filter\u003c\/strong\u003e is a compact hang-on-back (HOB) filter that clips onto the rim of your aquarium and pulls water through three stages of filtration for clean, clear, and healthy water. Its motor sits submerged inside the tank, so it runs virtually silent and re-primes itself instantly after every cleaning. Pick the S10, S15, or S20 to match your aquarium size.\u003c\/p\u003e\n\u003cp class=\"msf-cross\"\u003eKeeping your filter running clean? Stock up on replacement \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/marina-slim-filter-carbon-plus-ceramic-cartridge-3-pack\"\u003eBio-Carb (carbon)\u003c\/a\u003e and \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/marina-slim-filter-zeolite-plus-ceramic-cartridge-3-pack\"\u003eBio-Clear (zeolite)\u003c\/a\u003e cartridges, or browse all \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/filter-media-cartridges\"\u003efilter media and cartridges\u003c\/a\u003e at Squeaky's Aquatics.\u003c\/p\u003e\n\n\u003ch3\u003eWhy the Marina Slim\u003c\/h3\u003e\n\u003cdiv class=\"msf-feat\"\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eThree-stage filtration\u003c\/strong\u003eMechanical, chemical, and biological filtration in one slim unit keeps water clean, clear, and healthy.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eUltra-quiet submerged motor\u003c\/strong\u003eThe motor runs inside the tank, so operation is virtually silent with no priming needed.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eInstant Start System\u003c\/strong\u003eThe filter re-primes itself the moment you plug it back in after maintenance.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eCeramitek bio media\u003c\/strong\u003ePorous ceramic rings host the beneficial bacteria that break down ammonia and nitrite.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eAdjustable intake height\u003c\/strong\u003eThe telescoping intake adapts to different water levels and tank depths.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eFry-safe strainer sponge\u003c\/strong\u003eA sponge over the intake keeps small or baby fish from being drawn into the filter.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eQuick-Change, no mess\u003c\/strong\u003eCartridges slide in and out from the top for fast, clean swaps.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003eSlim, compact profile\u003c\/strong\u003eProtrudes only about 2 inches from the back of the tank to save space.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eChoose Your Size\u003c\/h3\u003e\n\u003ctable class=\"msf-cmp\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth scope=\"col\"\u003eModel\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eSlim S10\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eSlim S15\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eSlim S20\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eAquarium size\u003c\/th\u003e\n\u003ctd\u003eUp to 10 US gal (38 L)\u003c\/td\u003e\n\u003ctd\u003eUp to 15 US gal (57 L)\u003c\/td\u003e\n\u003ctd\u003eUp to 20 US gal (76 L)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eFlow rate\u003c\/th\u003e\n\u003ctd\u003e55 GPH (208 L\/h)\u003c\/td\u003e\n\u003ctd\u003e71 GPH (269 L\/h)\u003c\/td\u003e\n\u003ctd\u003e92 GPH (348 L\/h)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCartridges included\u003c\/th\u003e\n\u003ctd\u003e1 Bio-Carb, 1 Bio-Clear\u003c\/td\u003e\n\u003ctd\u003e2 Bio-Carb, 1 Bio-Clear\u003c\/td\u003e\n\u003ctd\u003e2 Bio-Carb, 2 Bio-Clear\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eWater type\u003c\/th\u003e\n\u003ctd\u003eFreshwater\u003c\/td\u003e\n\u003ctd\u003eFreshwater\u003c\/td\u003e\n\u003ctd\u003eFreshwater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eSKU\u003c\/th\u003e\n\u003ctd\u003eA285\u003c\/td\u003e\n\u003ctd\u003eA286\u003c\/td\u003e\n\u003ctd\u003eA287\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eDetailed Specifications\u003c\/h3\u003e\n\u003cinput type=\"radio\" name=\"msf-tabs\" id=\"msf-t1\" class=\"msf-radio\" checked\u003e\n\u003cinput type=\"radio\" name=\"msf-tabs\" id=\"msf-t2\" class=\"msf-radio\"\u003e\n\u003cinput type=\"radio\" name=\"msf-tabs\" id=\"msf-t3\" class=\"msf-radio\"\u003e\n\u003cdiv class=\"msf-tabs\"\u003e\n\u003clabel for=\"msf-t1\"\u003eSlim S10\u003c\/label\u003e\n\u003clabel for=\"msf-t2\"\u003eSlim S15\u003c\/label\u003e\n\u003clabel for=\"msf-t3\"\u003eSlim S20\u003c\/label\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"msf-panels\"\u003e\n\u003cdiv class=\"msf-panel msf-p1\"\u003e\n\u003ctable class=\"msf-spec\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003eMarina Slim S10 (A285)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAquarium size\u003c\/th\u003e\n\u003ctd\u003eUp to 10 US gallons (38 L)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFlow rate\u003c\/th\u003e\n\u003ctd\u003e55 GPH (208 L\/h)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFiltration stages\u003c\/th\u003e\n\u003ctd\u003eMechanical, chemical, biological\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eIncluded cartridges\u003c\/th\u003e\n\u003ctd\u003e1 Bio-Carb, 1 Bio-Clear (with Ceramitek)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMotor\u003c\/th\u003e\n\u003ctd\u003eSubmerged, self-priming, ultra quiet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower\u003c\/th\u003e\n\u003ctd\u003eAC-powered, UL listed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWater type\u003c\/th\u003e\n\u003ctd\u003eFreshwater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"msf-panel msf-p2\"\u003e\n\u003ctable class=\"msf-spec\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003eMarina Slim S15 (A286)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAquarium size\u003c\/th\u003e\n\u003ctd\u003eUp to 15 US gallons (57 L)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFlow rate\u003c\/th\u003e\n\u003ctd\u003e71 GPH (269 L\/h)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFiltration stages\u003c\/th\u003e\n\u003ctd\u003eMechanical, chemical, biological\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eIncluded cartridges\u003c\/th\u003e\n\u003ctd\u003e2 Bio-Carb, 1 Bio-Clear (with Ceramitek)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMotor\u003c\/th\u003e\n\u003ctd\u003eSubmerged, self-priming, ultra quiet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower\u003c\/th\u003e\n\u003ctd\u003eAC-powered, UL listed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWater type\u003c\/th\u003e\n\u003ctd\u003eFreshwater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"msf-panel msf-p3\"\u003e\n\u003ctable class=\"msf-spec\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003ctd\u003eMarina Slim S20 (A287)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAquarium size\u003c\/th\u003e\n\u003ctd\u003eUp to 20 US gallons (76 L)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFlow rate\u003c\/th\u003e\n\u003ctd\u003e92 GPH (348 L\/h)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFiltration stages\u003c\/th\u003e\n\u003ctd\u003eMechanical, chemical, biological\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eIncluded cartridges\u003c\/th\u003e\n\u003ctd\u003e2 Bio-Carb, 2 Bio-Clear (with Ceramitek)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMotor\u003c\/th\u003e\n\u003ctd\u003eSubmerged, self-priming, ultra quiet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower\u003c\/th\u003e\n\u003ctd\u003eAC-powered, UL listed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWater type\u003c\/th\u003e\n\u003ctd\u003eFreshwater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eWhich Size Is Right for You?\u003c\/h3\u003e\n\u003cp\u003eMatch the filter to your aquarium volume. As a rule of thumb, a power filter should turn over your tank water about four to five times per hour.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlim S10\u003c\/strong\u003e suits nano and small setups up to 10 gallons, such as a betta tank, a shrimp tank, or a small community.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlim S15\u003c\/strong\u003e fits mid-size community tanks up to 15 gallons and adds a second carbon cartridge for extra polishing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlim S20\u003c\/strong\u003e handles larger or more heavily stocked tanks up to 20 gallons with the highest flow and the most media capacity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf your tank falls between two sizes, or you keep messier fish, size up for extra filtration headroom.\u003c\/p\u003e\n\n\u003ch3\u003eCartridges and Replacements\u003c\/h3\u003e\n\u003cp\u003eThe Marina Slim uses two easy-change cartridge types, both built around Ceramitek ceramic media:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/marina-slim-filter-carbon-plus-ceramic-cartridge-3-pack\"\u003eBio-Carb\u003c\/a\u003e pairs activated carbon with Ceramitek to remove odors, discoloration, and impurities.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/marina-slim-filter-zeolite-plus-ceramic-cartridge-3-pack\"\u003eBio-Clear\u003c\/a\u003e pairs ammonia-absorbing zeolite with Ceramitek, ideal for new tanks and heavily stocked freshwater aquariums.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePlan to replace the carbon cartridge about every two to four weeks. Rinse the Ceramitek and strainer sponge in old tank water rather than replacing them, so you keep your beneficial bacteria alive.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdetails class=\"msf-faq\"\u003e\u003csummary\u003eDoes the Marina Slim come with filter media?\u003c\/summary\u003e\u003cp\u003eYes. Each filter ships with the Bio-Carb and Bio-Clear cartridges and Ceramitek bio media it needs to run right out of the box. The number of cartridges included depends on the model.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails class=\"msf-faq\"\u003e\u003csummary\u003eIs it really that quiet?\u003c\/summary\u003e\u003cp\u003eThe motor sits submerged inside the tank, which makes the Marina Slim one of the quieter hang-on-back filters. You will mainly hear the gentle sound of water returning to the tank, which you can soften by keeping the water level high.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails class=\"msf-faq\"\u003e\u003csummary\u003eDo I need to prime it after cleaning?\u003c\/summary\u003e\u003cp\u003eNo. The Instant Start System re-primes the filter as soon as you plug it back in. There is no need to fill it with water first.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails class=\"msf-faq\"\u003e\u003csummary\u003eCan I use it in a saltwater tank?\u003c\/summary\u003e\u003cp\u003eThe Marina Slim is designed for freshwater aquariums, and the included Bio-Clear zeolite cartridge works only in freshwater, so we recommend it for freshwater setups.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails class=\"msf-faq\"\u003e\u003csummary\u003eWill the S20 work on a smaller tank?\u003c\/summary\u003e\u003cp\u003eIt can, since the flow is adjustable, but very small or calm-water species like bettas usually do better with the S10 so they are not pushed around by the current.\u003c\/p\u003e\u003c\/details\u003e\n\u003c\/div\u003e","brand":"Marina","offers":[{"title":"S10 (10 Gal)","offer_id":48913481695451,"sku":"A285","price":25.99,"currency_code":"USD","in_stock":false},{"title":"S15 (15 Gal)","offer_id":48913481728219,"sku":"A286","price":32.99,"currency_code":"USD","in_stock":true},{"title":"S20 (20 Gal)","offer_id":48913481760987,"sku":"A287","price":38.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/img-93290._AC_SL1200_QL100_V1.jpg?v=1782553456","url":"https:\/\/squeakysaquatics.com\/products\/marina-slim-power-filter","provider":"Squeaky's Aquatics","version":"1.0","type":"link"}