Help!!!There is green stuff growing on my fish and then they dye please help

FreshyFresh

Superstar Fish
Jan 11, 2013
1,337
23
38
East Aurora, NY
#3
Hailey, not knowing anything about your setup, the most important thing you can do with fish-keeping is water changes. At a minimum, most tanks need a 50% weekly water change. The more crowded the tank, the more you need to do this. Siphon or bail out the old water and add new, dechlorinated tap water of similar temperature.
 

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