Would SMB spawn in most farm ponds in climates suitable for their long term survival? I don't know the answer but suspect maybe not unless they were gravelly bottomed. Am sure someone in the forums has the answer. In any event if it is no, they will not reproduce, why not stock them instead of LMB and avoid the stunting problem of LMB. Is it because they are not widely available to replenish on a put and take basis?