I have 2 dark red females and one female that is light orange with a black tail, and I have one male that is orange with a black tail. All of the women pick on my male. They chase him and nip at his tail, and the sword is gone off of his tail. Also, my orange girl's stomach has swollen and has turned white. Could she be pregnant? Why are they being mean to my male? Should I get him some more women? (lol) I have a 55 gallon tank.