Wish I knew more about YP and what to expect. This is my first time with them. I stocked a redone pond with some 3-5 and 5-7 inch in June of last year. I did hatch at least one bunch this spring because I caught 2 about 1 and 1/2 inches long in a minnow trap earlier. Haven't seen any small ones since, so they may have all gotten eaten by the SMB and larger perch. Some of the perch feed on the AM but they seem to also hammer the FHM along with the SMB. I put about 25 pound of FHM in in late may and I rarely see any now. No schools of FHM fry at all but 2 or 3 together occasionally. I don't really care right now because I would like the SMB and larger YP to keep the newly hatched BG in check. I'll likely put some more FHM in in late fall to provide them some extra food over the winter.