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Filtration
Sponge Filter
An air-driven sponge filter - the classic quiet, gentle, and inexpensive filter ideal for shrimp, fry, and betta tanks.
Price: Budget
For: Freshwater $5-$40
📖 Overview
Sponge filters use an air pump to drive water through a porous sponge - creating gentle flow, providing surface for beneficial bacteria, and preventing tiny inhabitants from being sucked into intakes. Indispensable in shrimp breeding, fry rearing, quarantine, and hospital tanks.