I stocked with coppernosed bream(bluegill), from what I have read they take pellets very well and they have small mouths so they leave more food for the bass. They were very good feeders on the pellets. What gets me is the water turkeys killed the large bream too even though they can't eat them. I think it's to eliminate the competition for their food sources. I'll check with my state to see if I can get some sort of permit to take out those water turkeys.
I actually saved one of those darn birds. One was hanging around the pond and I noticed he was weak and noticed something on his beak that looked strange. I saw him spear a coppernose and bring it on the bank pecking at it to eat. That's when I figured out his beak was tied shut with some twine. I caught it with a net and took the twine from it's beak and let it go. If I only knew what I know now about those birds I would have let nature take it's course.