I actually like melafix, its not my first choice, but everytime I've used it, it has worked. I've never heard of melafix killing a fish so I can't really comment on that.
As for your pleco. Time, salt, and water changes (melafix is a plus too) should do the trick. Get rid of the aggressor and replace him with 2 bristlenose plecos. The pleco probably isn't eating because he's too stressed out, give it time.
As for your pleco. Time, salt, and water changes (melafix is a plus too) should do the trick. Get rid of the aggressor and replace him with 2 bristlenose plecos. The pleco probably isn't eating because he's too stressed out, give it time.
