KristinaC Posted August 1, 2021 Share Posted August 1, 2021 10 gallon tank is 6 months old. ph 6.7 amonia 0 nitrites 0 nitrates 0 (heavily planted) Temp 78-80 Our water is on the hard side. Is this fin rot? I'm not sure! He always had sort of fringy fins but now I'm worried it's something I should be treating. Thinking of using Maracyn on the whole tank. Link to comment Share on other sites More sharing options...
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