Fluval Canister Bio-Foam Filter Block Value Pack, Models 406/407 Dietary Elements_Rawhide Alternative For the smaller dogs

For the smaller dogs

Choose according to size

For a wildly entertaining time

and should therefore be used for an aquarium that is 20" in height

Pressure-Flo 2000 PT1726

Fluval Canister Bio-Foam Filter Block Value Pack, Models 406/407 Dietary Elements_Rawhide Alternative For the smaller dogsDesigned specifically for the Fluval 306 and 307 performance canister filters, Bio Foam captures large particles and debris for effective mechanical filtration. Mechanical & Biological filter media Custom fit to prevent debris bypass Ideal pore size allows efficient water flow and longer media lifespan Enhances the biological filtration process Convenient 6 month supply (2) A189 Blue BIO FOAM MAX, (2) white A226 BIO FOAM & (2) A237 black BIO FOAM+