Aquatop Forza Replacement Coarse Filter Sponge Style:RCP-FZ9 It does not contain toxic

It does not contain toxic compounds which makes it 100% safe for fish and invertebrates

but can manage any pH between 7

more efficient cleaning with less water used

and meet the unique dietary needs of species rich reef and fish only marine environments

Aquatop Forza Replacement Coarse Filter Sponge Style:RCP-FZ9 It does not contain toxicThe Aquatop Replacement Coarse Filter Sponge contains 1PC per bag which effectively removes organic particles, foreign debris and excess food. Suitable for freshwater and saltwater applications, the RCP FZ13 are pre cut for the FZ13 FORZA Canister Filter and the RCP FZ9 are pre cut for the FZ9 FORZA Canister Filter.