I will add my father just informed me of a source of hybrid crappie which I thought previously unavailable to me. These would far better suit my needs compared to black crappie. Im thinking 65 hybrid crappie and8-10lbs of minnows to start with and more minnows later. As far as predators it makes more sense to wait until the next spring because really this first growing season they won’t be serving any purpose other than eating food that could be going to a crappie. Then if I see any signs of reproduction I can introduce them to curb what little there is. I am very interested to see how it shakes out.