I agree with Esshup but I have gotten them from fish suppliers who mixed them with bluegills.

I wouldn't worry about them. Actually, I like them. If you tied a GSF tail to tail with a bluegill, it would drown the BG.

Although I have seen them virtually take over, it is rare, very rare.

They only spawn annually and bluegills have a rolling(multiple times) spawn per season. Thus, they get out competed by the BG. Sooner or later they will disappear unless the creek keeps them viable in your pond. Even then, I don't really see them as a problem.

I have a forage pond with BG, GSF and, CNBG, and Redears. I don't hesitate to seine or trap them and deliver them to my other ponds as bass food.

It's not about the fish. It's about the pond. Take care of the pond and the fish will be fine. PB subscriber since before it was in color.

Without a sense of urgency, Nothing ever gets done.

Boy, if I say "sic em", you'd better look for something to bite. Sam Shelley Rancher and Farmer Muleshoe Texas 1892-1985 RIP Grandpa