SunGrow 10-Gallon Betta Sponge Filter, Underwater Center Aquarium Filter, Attach it to Air Pump (Not Included) to Run, Works for Tropical Fish & Breeder Aquarium, Perfect for Fry & Small Fish. Specially designed for betta, fry and, other small aquatic pets --- Betta, fry, and other small fish will NEVER get stuck into the filter.
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