Recommended Harrison’s Formula for Quaker parrots:

Adults: 
HIGH POTENCY FINE for 3-6 months, then ADULT LIFETIME FINE.

Chicks: 
NEONATE FORMULA for the first three weeks of life then JUVENILE FORMULA for faster weight gain and fewer feedings

The common problems in Quaker parakeets -- obesity, fatty tumors, xanthomas, and reproductive and feather disorders -- are usually not seen in birds fed Harrison’s. Quakers are the species most susceptible to atherosclerosis, a condition that is not totally understood.