Description
Mini Sponge Filter – 9.8 × 3cm, suitable for small fish tanks, such as spherical fish tanks, small fish tanks, special-shaped fish tanks and other family small fish tanks. Layer Filtration System – Funnel air outlet, gas stone filtration and biochemical filter sponge. Note: This bio filter must be used with an oxygen pump.（This product does not contain air pump） Suction Cup Design – Strong suction force, can be installed anywhere on the fish tank glass. Do not use an oversized air pump to avoid
