We have flirted with the idea of HSB to add some variety. We definitely want to add another species, just can't decide what. We have considered adding SMB every couple of years because they are posiblly the hardest fighting fish, pound for pound. We would have to add a few every couple years but it wouldn't be a whole lot different than HSB. I think I will continue to cull the small LMB as you guys reccomend. I just hope they aren't reproducing as was mentioned above. If those fish are old enough to reproduce and that small, I don't want those genetics to continue. Would it be a good idea, once the population can be "controlled" to some extent, to add a couple more adult LMB for genetic diversity?