Once they are transplanted from their little clone pots into their 5 gallon buckets, they get 3 litres and 3 ml of MagNiFiCal twice per week for the first 3 weeks. Then at the start of Week 4 of VEG, and throughout most of their flowering, the plants are large enough for the increase to 5 litres with 5 ml.
5 litres two times per week gives me 5% to 10% run off. The 10 ml MagNiFiCal per week is slightly less than the bottled directions.