Filter Material Biochemical Sponge / Cotton Filter for Salt & Fresh Water Fish Tank.Brand new and high quality This product is suitable for seawater, fresh water, water tanks, size can be cut freely. The filter cotton has the best effect on decomposing the excrement and the forage left over. improving the filtering, cleaning. it can reduce the death rate of fish. Washable in nature Durable and lasts longer. Softness is best suitable to develop the best for bacteria. The bio sponge is able to dissolve waste of fishes.

• We are trying to provide you the best aquarium cleaning tools and kit , filter sponge pad for top filter and other filter
• Effectively removes dirts, perfect pore gap and flexible to cut as u wish , easy to use
• This aquarium cleaning sponge can be used in both salt water and fresh water, gives a crystal clear shiny effect after cleaning the aquarium waterLarge cartridge can be used square , block and cylinder style. Just cut the sheet and use as you want