• 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.
• Washable in nature Durable and lasts longer.
• 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.
• Softness is best suitable to develop the best for bacteria. The bio sponge is able to dissolve waste of fishes.

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