The brush is in the middle, the deepest point. The depth is a gradual drop off for about 15 ft of 3 to 6 ft then it drops off a lot.

I really like to catch and eat crappie but it sounds like this could be a bad idea. As for as catfish we didn't put them in because of the muddy water issues, but I think catfish are good to keep everyones belly full and happy.
Will lime help keep the water clear with catfish in a pond?