{"product_id":"tetra-whisper-internal-aquarium-filter-200-gph-for-20-40-gallon-tanks","title":"Tetra Whisper Internal Aquarium Filter, 200 GPH for 75.7–151 L Tanks","description":"\u003cp\u003e\u003cstrong\u003eThe Tetra Whisper 200 GPH Internal Power Aquarium Filter is made for 20- to 40-gallon aquariums (76–151 L), combining three-stage filtration with a space-saving design that clips inside the tank.\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFilters up to 200 gallons per hour (757 L\/h) — circulates aquarium water through the filter.\u003c\/li\u003e\n\u003cli\u003eMechanical, chemical and biological filtration — addresses debris, odor and discoloration, and ammonia and nitrate.\u003c\/li\u003e\n\u003cli\u003eStay Clean technology — helps reduce glass buildup, bind small particles for easier filtering and stabilize pH.\u003c\/li\u003e\n\u003cli\u003eInternal clip-on design — lets an aquarium sit as close as 1 inch (2.54 cm) from the wall.\u003c\/li\u003e\n\u003cli\u003eAdjustable universal clip — accommodates setups with high or low water levels.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFor fishkeepers who want filtration housed inside the aquarium, this filter combines water cleaning with a compact placement option. Its cartridge-based design and adjustable clip suit a range of aquarium setups, while the filter can be concealed behind aquarium décor.\u003c\/p\u003e\u003ch3\u003eHow does the Tetra Whisper filter clean aquarium water?\u003c\/h3\u003e\u003cp\u003eIt uses mechanical, chemical and biological filtration. Cartridge floss traps dirt, debris and fish waste, while Ultra-Activated carbon helps remove odors and discoloration. Biological filtration works to eliminate toxic ammonia and nitrate.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eThe large Tetra Whisper Bio-Bag cartridge is easy to change.\u003c\/li\u003e\n\u003cli\u003eThe carbon is wood-based; Tetra says it clears odors, tannins and dye more effectively than coconut shell-based filters.\u003c\/li\u003e\n\u003cli\u003eThe feature specification calls the motor 170 GPH (643 L\/h); the product description gives a filtration rate of up to 200 GPH.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eHow much space does this internal aquarium filter need?\u003c\/h3\u003e\u003cp\u003eThe filter clips directly onto the aquarium wall, and its compact design allows the aquarium to sit as close as 1 inch (2.54 cm) from the wall. Aquarium décor can help hide the filter inside the tank, keeping the equipment out of view.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eThe filter is designed for 20- to 40-gallon aquariums (76–151 L).\u003c\/li\u003e\n\u003cli\u003eIts adjustable universal clip suits different setups and high or low water levels.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhat does Stay Clean technology do?\u003c\/h3\u003e\u003cp\u003eStay Clean technology helps reduce buildup on aquarium glass, binds small particles so they are easier to filter and helps stabilize pH. These functions work alongside the filter’s three filtration stages to support a clean environment for fish.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eQuiet operation is a feature of Tetra filters.\u003c\/li\u003e\n\u003cli\u003eFiltration is housed inside the aquarium rather than in an external filter unit.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe Tetra Whisper Internal Power Aquarium Filter is suited to fishkeepers with a 20- to 40-gallon aquarium who want quiet, internal filtration, adjustable positioning and a replaceable Bio-Bag cartridge. Its clip-on format keeps the filter inside the tank while allowing the aquarium to sit close to a wall.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Which aquarium sizes suit the Tetra Whisper Internal Power Aquarium Filter?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The Tetra Whisper Internal Power Aquarium Filter is designed for aquariums holding 20 to 40 gallons (76–151 L).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What type of filtration does the Tetra Whisper Internal Power Aquarium Filter use?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The Tetra Whisper Internal Power Aquarium Filter provides mechanical, chemical and biological filtration using cartridge floss, Ultra-Activated carbon and biological filtration.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Tetra","offers":[{"title":"Default Title","offer_id":55662921154903,"sku":"B0002DHYH2","price":54.82,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1056\/4780\/0663\/files\/tetra-whisper-filter-front-view.jpg?v=1793340239","url":"https:\/\/bathpetsupplies.co.uk\/products\/tetra-whisper-internal-aquarium-filter-200-gph-for-20-40-gallon-tanks","provider":"BathPetSupplies","version":"1.0","type":"link"}