Well from everyone I have talked to I've been told the shipping process stresses feeding babies out, but if you mean they are stubborn when young, yeah I agree. (*Edited, sorry had to reread)
They are very small still, june hatch date iirc, and I'm trying to feed them pinkies. Have tried p/k and live. Got the yellow to feed once and the red hasn't eaten. The yellow has not eaten a second time but both are showing a little interest. Just not enough to taste.