Pond Boss Forums MANAGING AN EXISTING POND Evaluating and adjusting fish populations how many RES???

11 acre lake 24 foot at deepest point. average depth between 8 to 10 full of clam and mussel beds currently has healthy numbers of LMB,BG,BCP,HBG. How many RES should be stocked and who is best supplier for my area which is 20 miles north of muncie indiana..also lake is around 25 years old and at times fish have black spots pretty bad