By GS, do you mean Golden Shiners? Many here use "GSH" for Golden Shiners.

If you think about stocking a brand new pond with no predator fish in it (LMB or other), the general plan is to let forage fish like Bluegill and Fatheads occupy the new water and breed a few times before putting in the predators. Sometimes it's a year in between.

So, you may have somehow ended up in that initial stage where you've got multiple years of Bluegill going on. If so, then you could ad 30-50 LMB from a norther hatchery and see what happens.

I think you could also add Yellow Perch with the existing mix.

If you wanted to go with Golden Shiners, I'd do the Golden Shiner Frye from Andersons Fish Farm and get on the list for delivery in April/May 2024.

Excerpt from Robert Crais' "The Monkey's Raincoat:"
"She took another microscopic bite of her sandwich, then pushed it away. Maybe she absorbed nutrients from her surroundings."