First of all, it sounds like she is being bullied, so i would recomend moving her to a hospital tank so she can rest and be left alone. If she is still having problems with what sounds like a bacterial infection, i would try a med that is geared specifically towards bacterial infections. I know esha 2000 is a cure all that is advertized for parasites, bacteria, and fungus, so i don't have much faith in it. I am not familiar with the esha exit.