Description A must have filter accessories for your fish tank, these pre sponges are made from the top-quality filtration foam, BPA free and safe to your fish, suit for freshwater and saltwater. Help to trap particles and debris, and prolong the life of your filter media, provide efficient water flow with less clogging for long lasting filtration, biological filtration. Feature - Color: Black. - Material: Sponge. - Size: 8x4x4cm. - A must have filter accessories for your fish tank,these pre sponges are made from the top-quality filtration foam,BPA free and safe to your fish,suit for freshwater and saltwater. -Help to trap particles and debris,and prolong the life of your filter media,provide efficient water flow with less clogging for long lasting filtration,enhance biological filtration. - Give your fish pet a securaty habitate! these pre-filter sponge suit for all shrimp tank owners and anyone else who has baby or small fish in their tank. - Warm Tip: Dear buyer, due to lighting effect, monitor's brightness, manual measurement, etc., there could be some slight differences in the color and size between the photo and the actual item. Sincerely hope that you can understand! Thank you! A must have filter accessories for your fish tank,these pre sponges are made from the top-quality filtration foam,BPA free and safe to your fish,suit for freshwater and saltwater |Help to trap particles and debris,and prolong the life of your filter media,provide efficient water flow with less clogging for long lasting filtration,enhance biological filtration |Give your fish pet a securaty habitate! these pre-filter sponge suit for all shrimp tank owners and anyone else who has baby or small fish in their tank