So I know a few of my fish have there problems, trying to fully diagnose is a pain as some seem to have potential in many fields of illness
One possibility is the early stages of white spot (flicking etc), my question is, would it be detremental to the fish to medicate if that wasnt indeed the problem? I mean, is treating fish without white spot with that medication actually harmfull? I cant imagine it is but im no expert 
, just need to make sure ive got the old carbon ready