The Ista Bio-Sponge Filter Large (Short) is a mechanical filter sponge that provides excellent filtering while oxygenating the water. The foam material supports the colonization of bacteria for biological filtration. Requires an air pump for use.

Features:

• Requires an air pump.Can be connected to a standard airline hose connection.
• 4-3/4″ diameter, 6-1/2″ tall (including uplift tube)
• Excellent for breeders and hatcheries
• Less maintenance than traditional filters
• Easy and fast to clean
• Economical and longer lasting
• Weighted