You will undoubtably lose some small fish. However, the loss should be relatively minor. Most fish tend to go upstream when water levels rise. Don't lose any sleep about it and don't take a chance on losing the dam by blocking the spillway.
A 12 inch LMB prefers forage that is approximately 1/4 its body size. However, all fish, especially those with a large mouth are opportunists, and will pack in a lot of minnows and can go larger than is sometimes good for them.
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 Grandpa
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