Also, as they get older, curious chicks will eat their own poops. One side is for cuddling, one side is where I put foods. The best advice I can give is to be properly trained before attempting hand-feeding . Once I'd done this for a few days, I took the bird home to feed, then I brought the bird back in so they could check his weight every other day. Once you've properly learned this procedure the guidelines below will help you, but remember, hand-feeding is not an exact science.
Some birds wean quickly, some take twice as long.
If you want healthy birds that aren't neurotic about food, you'll learn from them rather than follow a rigid system. All of my lovebirds require four to five feedings a day at first. I have tried other formulas and have been at times suspicious of a rotten smell they can have. That seems like as good an endorsement as you can get. The formula should be between 103 and 105 degrees Fahrenheit.