Don't worry about it too much, I'd take a wait and see attitude until next year, trying to catch some RES next year from the pond. Then and only then if I didnt' see any would I get agressive in removing the BG.

Another reason why to purchase fish from a reliable supplier if you don't have RES.

Wait, you said CNBG were also on the truck? If a true CNBG, they might not survive the winter in your pond, so it might be a moot point.

www.hoosierpondpros.com

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3/4 to 1 1/4 ac pond LMB, SMB, PS, BG, RES, CC, YP, Bardello BG, (RBT & Blue Tilapia - seasonal).