How big were the RES? To me thoses look like young of the year (YOY) BG or RES.
The Redear Bream were probably 2" on average, much bigger than these little things.
If I have this many in this little puddle, I can't imagine how many are in the pond.
I am planning on putting bass in the pond during the spring.
Edit: After reviewing a picture of the fish as we put them in the pond (see other post below) the fish were quit a bit bigger than 2".