Standard advice would have been to stock your forage this past Spring, allow them to spawn multiple times, then stock your fish. Do you have a forage base established yet, or are you just looking to do this now? Sounds like you have a pond with YP and BG only at this point, so we're attacking this in a backward fashion. Not a big deal, I just want to make sure we understand the situation prior to making recommendations. Few questions:

What is your overal stocking plan? What else will you stock in this pond?

What size is your pond [depth, too].

What species will be used to control your BG population?

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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