Sir Matt, my experience tells me that your stunted perch will grow with a proper and continual food source to their predetermined size. The same should be said for their new fry, they will grow to their environment and available food supply up to their predetermined genetic size as well. I believe stunting doesn't effect genetic over the short term anyways but I am not an expert, so maybe someone who is can comment as well... In my area in southwestern Ontario the jumbo yellow perch get 12-14" in length as are found in my 16 acre lake. But having said that my bluegill seldom reach over 9" in our shorten growing season and cooler weather overall than you. I hope this helps your cause.

Rowland