Not sure if domestic is the right word, but wondered who has stories about keeping blue gill, bass, etc in tanks. I've been tempted to do it, but wondered what I should know concerning laws, differences in keeping them from storebought fish, etc. Any help would be appreciated. The tank I have is 55 gallons, so looking for smaller fish. I also wondered if fish outgrew a tank if it would hurt them to put them back in the pond they were caught in?