I have 8 blue gouramis that i have in a 30 gallon tank. I have had these fish (all males) for a year and a half and they are always healthy. Today i went to feed them and noticed one of them is black from the middle all the way to the end of his tail and his tail is stuck together. Is there something i can do or is he doomed? He is eating and active otherwise. Thank you
Ferrettmom
Ferrettmom