My pond is on a seasonal creek, below two other ponds that are overrun with Bluegill and Green Sunfish. At least couple of times a year, we have rains that cause all the ponds to flow over the spillway down the chain of ponds, so I am stuck with them. My plan is to stock black crappie and hybrid stripers. I stocked Blue and channel catfish and coppernose bluegill in the last couple of years. What will the Green sunfish do to my pond? I have seen the "start over" advice for bluegill/LMB ponds, but that is not what I am going for. When does the GSF spawn relative to the Black Crappie?