If I owned a pond with LMB established as the top predator I would be hesitant to stock anything less than 9" depending on the species but that's just me being extra cautious. For something fusiform like a YP I might even go longer, while BG probably arrive at the security length at 6" is my guess. I think stocking these SMB [4-6"] into a LMB pond without first growing them out in a RAS or blocking net is an unwise investment. That being said, I think the SMB could easily be grown to that 9-12" size in an RAS over the winter with steady pellet program and ready to stock the following Spring.

Many men go fishing all of their lives without knowing that it is not fish they are after. ~ Henry David Thoreau

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