Just to tide you over 'till Rex chimes in here. I stocked 36# of 6"-8" long Tilapia in a pond that was the same size as yours. They spawned multiple times and had lots of babies. There was absolutely no algae growing in the pond all year, and visibility was averaging 16"-18". I had to treat the stream that was formed by taking water from the pond and recirculating it for algae growth roughly every 5 weeks. So, I know something had to be keeping the FA in check in the pond.

There was minimal predation in the pond, so I have no idea how many Tilapia were in the pond at the end of summer.

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3/4 to 1 1/4 ac pond LMB, SMB, PS, BG, RES, CC, YP, Bardello BG, (RBT & Blue Tilapia - seasonal).