ISTA Round Bio-Sponge Filter

Fish4Ever Aquatics Verified independent store

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ISTA Round Bio-Sponge Filter: -1 ISTA Round Bio-Sponge Filter -Rectangle, 4 inches Mechanical filtration: Provides excellent filtering effect while oxygenating the water Biological Filtration: Foam material supports the colonization of bacteria Can be used with either an air pump or any external filter Silent operation by reducing air pump noise Easy to install and simple to maintain. Show more