I think this may need to go on the emergency thread.... But anyway I have a twenty gallon with platies and a male betta (3 females and 1 male platy). One of my females is really aggressive (gave birth earlier today) I got them all yesterday and she has stated nipping my betta, I was wondering if she needed more protein and that was why she attacked him(she even nips other platies). I don't want to take her back because she will be killed by the store, is there any alternatives besides removing any fish?