I'm not convinced 100% about the growth rates, but the differences in water temp could account for that.

BUT for us up here, unless proven otherwise, CNBG or CNBG hybrids are not the best choice. I'd still go with Northern Strain.

Now, who's to say that 2, 3, 5 years down the road there might be a hybrid that can withstand the cold???

Remember, this IS the place for cutting edge pond stuff!! wink

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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).