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  1. General Freshwater
    Hey guys, I have a 5.5 gal tank currently with about 10 inches of fish in it, the largest being a betta. I have been using a Marina 25i internal filter which it supposed to provide filtration for up to 25L (6.6 gal) and its been doing a good job for the most part. I recently bought a Top Fin 10...
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