Welcome to the forum! If the fish that you want to feed the Fatheads (FHM) to are larger than 9" or so, then it's time to switch to a larger forage fish. The predators have to expend too many calories per bite. Look into stocking adult Golden Shiners early in the Spring. They need grassy areas and submerged vegetation in 24" deep or less water to spawn on.

Largemouth Bass (LMB) do very well by having Bluegills (BG) as a forage fish. Typically LMB do best with forage fish that are 1/3 to 1/4 their body length.

If you still want to raise FHM, they spawn on the underside of submerged pallets, the underside of lily pads, etc. You'd have to have that type of cover in the tanks for them to spawn on.

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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).