First pic is a female festae the second one is a pumpkinseed sunfish. Pumpinseeds are a native species in are local lakes, streams, and rivers and taste realy good. You need a chiller to raise those in an aquarium since they are a "cold water species" and will eventualy die if not kept in cold water. Looks like yoiu have it in the tank with the festae? How long has it been in there?