FHM like to spawn on the underside of things, and in fluctuating water levels like yours I'd recommend some type of floating cover that will rise with the water. Basically anything that has a flat or semi-flat underside and that will stay in the top 18" (or less) of the water column near shore would work.

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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).