Did it last the night ? How old is t ? I hand reared one on Kaytee exact ,I thought the thing was never going to eat for itself but it's fully weaned now . Here's what I did ,others may do it differently I'm no expert .I fed it Kaytee exact starting off with slightly runny mixture , I had the bird with me 24/7 so when I noticed its crop was empty I fed again( always make sure it's empty or near enough empty to reduce the risk of sour crop ) . I'm not sure if it actually prevents it its just what I read online .
I fed the chick roughly every 1hr- 2 hr hours never overfilling the crop .i star