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Title: Kills fishes but clears water
Review: I bought 2 filters for my 10 gallon tanks with Platy fishes. It was very cloudy before. After using the filter for 5 days water turned crystal clear!!! but now I notice that my fishes are loosing weight (big head, small trunk)and hiding in corners and I already lost 12 fishes and few are still sick.....I tried medications for fungus and parasites, with no effect so far. Another tank with no filter, fishes are fine. I remember that long time back I bought few sponges from dollar store for undergravel filter (home made!), next day morning all my gold fishes died. Should I remove the filter??....I am lost
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