Electrofishing is only sampling and never tells the whole story. It just identifies what is in the shallows. I'm not 100% sure you need to nuke the pond. You have bluegills already and they will grow and spawn. I would also bet that you have some small bass left and figure there is a good chance that it will rebound on its own.
That said, if I wanted a sure thing, I would probably take option #3.
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
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