Fluval 307 Canister Filter – Big Kahuna Tropical Fish
Fluval External Filters Aquarium Fish Tank Canister Power Filter 107 207 307 407 | eBay
The right filter material
Amazon.com : Fluval Zeo-Carb, Chemical Filter Media for Freshwater Aquariums, 150-gram Nylon Bags, 3-Pack, A1490 , White : Aquarium Filter Accessories : Pet Supplies
Amazon.com : Fluval 306/307 Bio Foam Value Pack, Replacement Aquarium Filter Media : Pet Supplies