That's a LOT of goldfish/biomass. I believe I would, at this time, try to seine out what I can. Or nuke it. You could be on the cusp of an oxygen crash. Those suckers are going to keep spawning.

I like the idea of either the HSB or channel cats for the ones that you can't eliminate. If you nuke it, come back with Hybrid bluegills with the cats or HSB

It's not about the fish. It's about the pond. Take care of the pond and the fish will be fine. PB subscriber since before it was in color.

Without a sense of urgency, Nothing ever gets done.

Boy, if I say "sic em", you'd better look for something to bite. Sam Shelley Rancher and Farmer Muleshoe Texas 1892-1985 RIP