I have this really pretty male platy that always gets picked on by the other two males. All three started out the same size. The other males have been chasing him so much that that he is almost always hiding and doesn't get much to eat. He hasn't grown any since I got him but the other two have. His tail is split down the middle. His scales started to look really beat up and I noticed other fish that usually don't bother anyone started to pick on him too. I setup a hospital tank to let him recuperate. He looks much better now, but is still small. Even though I am moving my fish to a much larger tank, I'm afraid to put him back with the other platies. I'm considering putting him in my mom's tank. It's a 5 1/2 gallon with a pair of cherry barbs, a male guppy, and an oto in it. Do you think it would work? The guppy doesn't pick on the other fish, but I thought he might pick on the platy because they are closely related. What do you think?