Not like an official chart I guess, but saw from the forum while searching. It was 6 qt for hatchling to 200 g, then move up to 15 qt till like 500 ~600 g then 28/32 qt as adult. Females usually in 41 or bigger. He was and is at like 140~150 g so thought 6 qt could work for him. But I am out to buy 15 qt.