it acted kind of lethargic a couple of days and then he turned from grey to pinkish. does anyone recognize the symptoms? i thought it might just be water quality so i moved him to a qt tank by himself and it has colored back up and is swimming around. id like to medicate for internal parasite whether it has them or not just as good practice. what is the name of that med that yall always recommend? and is that med safe for catfish cause it was in a tank with a banjo cat and if it has parasites the banjo might too.