I give my chicks treats, so I also give them the parakeet grit found in the pet department, as some of the experts recommended on BYC. My girls are 4 weeks old. I put a little in their food each time I fill the food dishes.... I just need to know if it is possible to give them TOO much? Or if it would be better if I just offered it in a seperate feeder and let them take it as they want it?? Thanks in advance !!