Debra,
Every pond I've ever seen, newly built and left alone for no more than 1 month, will stock itself with Gambusia. That includes our farm ponds that are killed with hydrated lime then filled with filtered water. I see no need to stock Gambusia...none whatsoever.
Black crappie with a stripe down their back are not hybrids...they are a strain of black crappie that have been selectively spawned. I'm not saying that your crappie are not hybrids (whitexblack cross), but the only other farm that is raising hybrid crappie that I know of is experiencing low fry survival rates. Do you have any thoughts?
