You could go tj's route and cage them until they get a little bigger.
I like this idea over adding 2 1/2" fingerlings to a pond with 7 to 9" CNBG. You might fence off a small area. using a net, and take some of these fingerlings and then see if you can feed train some of them. It might be like training them to hit Top Water
I bet there are some here who can make suggestions on how to feed train lmb fingerlings.
Tracy
