just how mean are they? i have a true perc who is killling off fish i try to add to his tank (a small false perc and a pygmy angel). we would like to add another fish to the tank but are afraid he'll kill anything we put in - so i was thinking about a damsel, a blue velvet damsel. just a thought i had but i'm leaning towards no as the tank is only 29 gallons and i just don't think that'd be big enough for 2 aggressive fish... what do you think?




