my fish have been beaten up by a red tail black shark. and some of then have had their fins and tails injured - will they grow back or are they stuck like that now?
if the water is kept clean, and maybe use melafix (if they arent too badly damaged, although, ive seen melafix work wonders!!) and remove the red tailed black cos he will do it again. but if they dont get infected they should definately grow back.