The Ista Bio-Sponge Filter Small (Tall) is a mechanical filter sponge that provides excellent filtering while oxygenating the water. The foam material supports the colonization of bacteria for biological filtration. 3-1/4" diameter, 8-1/4" tall (including
The Ista Bio-Sponge Filter Small (Tall) is a mechanical filter sponge that provides excellent filtering while oxygenating the water. The foam material supports the colonization of bacteria for biological filtration. 3-1/4″ diameter, 8-1/4″ tall (including uplift tube)
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