We had the 1/2 acre pond built 10 years ago in an existing gully that had a small spring(SE Indiana). The soil is very rocky and what isn't rock is clay. With this in mind I am thinking of getting some pea gravel for some bluegill spawning beds. Is it true the gravel should be in 3-4 feet of water? Is pea gravel the way to go? I will have someone do it with a backhoe so I can add plenty. The catfish are reproducing since we see small ones, but in the last couple of years we haven't seen as many small bluegill and I thought this would help. The large Koi are also spawning so I am worried the bluegill are getting crowded out. I have restocked the bluegill and also with shiners and minnows for the bass. Thanks