{"product_id":"aquarium-filter-sponge-for-fish-tank-air-pump-skimmer-biochemical-sponge-filter-aquarium-bio-filter-filtro-aquario-acessorio","title":"Aquarium Sponge Filter \u0026 Replacement Sponges (Air-Driven)","description":"\u003cp\u003eA gentle, air-driven sponge filter that provides biological and mechanical filtration without strong currents — a favorite for betta tanks, shrimp, fry, and quarantine setups. Choose a complete filter unit, or stock up on replacement sponges for the unit you already run.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eComplete units include sponge, uplift tube, and weighted base\u003c\/li\u003e\n\u003cli\u003eRequires an air pump and standard airline tubing (not included)\u003c\/li\u003e\n\u003cli\u003eModels A-180 through C-380 for nano to mid-size tanks, plus slim D-2835 \/ E-2836\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRinse the sponge in removed tank water during water changes to protect the beneficial bacteria colony.\u003c\/p\u003e","brand":"Northbound Pet Co.","offers":[{"title":"C-380 Sponge (Refill)","offer_id":67588150853784,"sku":"14:1052#C-380 Sponge","price":6.99,"currency_code":"USD","in_stock":true},{"title":"B-280 Sponge (Refill)","offer_id":67588150886552,"sku":"14:366#B-280 Sponge","price":6.99,"currency_code":"USD","in_stock":true},{"title":"A-180 Sponge (Refill)","offer_id":67588150919320,"sku":"14:173#A-180 Sponge","price":6.99,"currency_code":"USD","in_stock":true},{"title":"E-2836 Filter","offer_id":67588150952088,"sku":"14:691#E-2836","price":12.99,"currency_code":"USD","in_stock":true},{"title":"E-2836 Sponge (Refill)","offer_id":67588150984856,"sku":"14:350853#E-2836 Sponge","price":5.99,"currency_code":"USD","in_stock":true},{"title":"D-2835 Sponge (Refill)","offer_id":67588151017624,"sku":"14:496#D-2835 Sponge","price":5.99,"currency_code":"USD","in_stock":true},{"title":"D-2835 Filter","offer_id":67588151050392,"sku":"14:10#D-2835","price":9.99,"currency_code":"USD","in_stock":true},{"title":"C-380 Filter","offer_id":67588151083160,"sku":"14:175#C-380","price":19.99,"currency_code":"USD","in_stock":true},{"title":"B-280 Filter","offer_id":67588151115928,"sku":"14:193#B-280","price":16.99,"currency_code":"USD","in_stock":true},{"title":"A-180 Filter","offer_id":67588151148696,"sku":"14:29#A-180","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0850\/2440\/7704\/files\/S0cee13c8d77a40098c2b9e6087604eb9V.webp?v=1790485367","url":"https:\/\/northboundpetco.com\/products\/aquarium-filter-sponge-for-fish-tank-air-pump-skimmer-biochemical-sponge-filter-aquarium-bio-filter-filtro-aquario-acessorio","provider":"Northbound Pet Co.","version":"1.0","type":"link"}