Pond Boss Forums MANAGING AN EXISTING POND Evaluating and adjusting fish populations YP, SMB and... goldfish???

I agree with what Rainman said. Goldfish are more similar to common carp than to BG. They will get larger than the SMB or even LMB can eat, and will take up valuable biomass in that BOW that could be put to better use.

Even if the ground is flat, all of the water doesn't run to the pond, does it? An electric sump pump will move a considerable amount of water over a period of 24 hrs, but not quick enough to flood an area.