I'm about 30 miles South of the Michigan/Indiana border at 782' elevation and the RES survive just fine. In the local lake, the wild RES seem to get larger than the BG, but there is a MUCH larger population of BG than RES in the lake.

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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).