I have a ~4" albino pleco which has been doing well up until now. It is still acting normally, but I have noticed some dark tissue on the edge of his rear-left side fin. I hope he just damaged it on the lava rock in my tank- sometimes he tries to squeeze through spots that are too tight. Could it be fin rot? If so, is there a risk of it being transmitted to the other fish in my tank? How should I treat it?
Thanks!
-J
Thanks!
-J