well the other day i came home and some of the coral beauty angelfishs fins were shredded and he was just floating around but trying to swim and died. i first thought of the ph but he was a strong fish so i didnt suspect my female false perc. clownfish. and today i watched as she bit the male a couple of times! i dont know if she is crabby about something but the conditions have been the same for the past week or so. should i be expecting more dead/injured fish?