If you really want smallmouth, then don't put in LMB. The LMB will out compete the SMB and it'll become a LMB only pond. OTOH, if you start with SMB, you can always switch to LMB. You can't switch to SMB from LMB without killing the whole pond.

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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).