I have been treating my 55g because it had a fungal infection. (All signs are gone now, just says I'm supposed to treat for a few more days) All my Cherry Barbs were fine, then today I notice one of my cherry barbs is missing his entire tail fin. In my tank I have Pearl Gouramis, Cherry barbs, Golden barbs, loaches, and corys.
They never fin nip or chase eachother. I thought maybe it got caught someone on a rock? But I have yet to find his tail..
Any suggestions? Should I treat the poor fellow with anything? He's still getting around and eating. The end of his body isn't infected or anything.