Sorry I missed this.

Tell us the situation of your pond. Things like nature of your water and sources , elevation, how far north in Ky, what else is in the pond , how many fish , size and when etc. Feeding or not. Ice over or not and how long and any aeration. If you have a water temp profile that would be great.

There is limited info on CNBG in northern ponds. There is more on Fla LMB in northern ponds. Depending on your facts you are close to the northern limit for CNBG.

The limited info on the subject shows slower growth and sub-quality condition and in some cases death the farther north the location. In some cases the fish lived and grew they just did not reach their genetic potential and did worse than their northern cousins.

Tells us the facts about the situation and what you are seeing and if you have pics of them post them. Do you know where the fish came from?