IIRC, it's 1/2 square foot each for the first week, then 1 square foot each, then up to 2 square feet each by 4-6 weeks, and same as adults by about 12 weeks.
IIRC, it's 1/2 square foot each for the first week, then 1 square foot each, then up to 2 square feet each by 4-6 weeks, and same as adults by about 12 weeks.