I have a bluegill and green sunfish in a 10 gallon tank and the bluegill keeps shredding the sunfish's fins. I also have a 5inch bullhead cat in a 45galloon with 5 carp a couple goldfish and some misquitofish and he keeps eating my misquito fish. I was thinking of upgrading the bluegill and sunny to a long shallow 20 gallon and putting the cat in there to and maybe they wouldn't fight as much. Then i would move the goldies to the 10gallon and leave the carp in the big tank. Do you guys think this is a good idea?

