Early in my grow I watered until run off.Took tens days to dry,my plants were too small too handle it .Currently in 3g cloth pots the plants appear to be a litter larger mass than yours.Never put in more than 2 litres at a time.One stunted plant was getting 2/3 of a litre from day 14 in veg to day 45 in veg.This plant has made a full recovery..Currently they are drinking 2 litres every 3 days.