Are tilapia not an option for you, Steve? I had similar issues with my small pond this past summer and am going to give tilapia a shot next spring. Might be worth considering before you throw in the towel. Of course, if they aren't legal in MO, then you may be much more limited in your options.

Todd La Neve

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1.5 & .5 ac ponds - LMB, BG, RES, YP, GC, HSB