Wait for someone else to chime in whose actually achieved this, but basically I would overstock your LMB. Don't stock BG before them because that will have to reverse effect of what you're looking for. The BG could overpopulate and stunt instead. The small, always hungry LMB will hammer your smaller BG. When you stock your BG I would stock larger fish to they avoid predation. As far as numbers go, I'm not sure since I've never done it myself, but maybe 150 LMB? Again, wait for more feedback on this plan. Love your idea of a kid pond though and hope to do the same in the future.
