IMO a balanced 0.5 acre pond can sustain a high quality predator population of around 20-40 high end predators of various size classes. The fewer the predators present the larger they will generally be as growing adults. Keep in mind that pond fish biomass is based on carrying capacity thus predator biomass is the smallest amount or weight of the total fish pond biomass. Read up and study about Pond Carrying Capacity to help with pond management.

https://forums.pondboss.com/ubbthreads.php?ubb=showflat&Number=92440#Post92440

Other good fish farms in central OH
Shelby Fish Farm Anna OH,
Mill Creek Fish Farm Marysville
Fenders Fish Farm Baltic - Charm OH.
https://www.atac.cc/ rick rogers near Dayton
Freshwater Farms Dave Smith PhD Urbana OH.
Almost all Ohio Fish farms are fish brokers similar to Wal-Mart. They raise very few fish themselves. Most all small fish they sell are bought from other big producers. Brehm's Perch Farm and Mill Creek hatch and raise about all of their own perch. Fenders farming about 230 ac of water is about the only one that actually hatch and raise a large number of their own fish and even they do not raise CC, grass carp, crappie, WE, northern pike and often a lot of their other fish they sell when they run out and need more for sales.
Jones buys elsewhere almost all the fish they sell.

Be careful and watchful of all these fish farms, they have their own opinions of what you should buy and stock and often based on their sales needs not your best needs. Here on Pond Boss forum we are not selling anything except good free pond management advice. Always check in here for good 1st or 2nd opinions.