My betta fish has been changing from his typical bright red color to a dull, sickly brown for the past month or two and I've also noticed that his fin length had decreased to the point that he can barely swim.
After reading online I concluded that he had fin rot and thought I should act quick and treat it. I bought Fungus Clear tablets and put one in a freshly cleaned tank yesterday and now my fish has taken a turn for the worse! He was laying on his side at the bottom of the tank this morning, his gills barely moving so I removed him from the treated water and put him in a cup of fresh water.
Does anyone have any experience with Fungus Clear that could tell me why my fish seems to be reacting this way? Also, is there anything I can do to ensure that he doesn't die? I need help quick!
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