I went with FHM because it was easy to just trap a few dozen from the main pond and put them in and let them do their thing. I also figured that they wouldn't get out of control and hurt anything.
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A great idea and starting point. They do well with no predators and can live in low DO and poor water quality (like some forage ponds). Be sure to put in , or have , some spawning structure ( pallet , floating board , some submerged weeds , etc.).
