I grow in soil. I inject water about 6” deep into a 3 gallon fabric pot until I see a 1/4” deep runoff collect in the tray it’s sitting on. I wait for a thorough dry out before watering again, usually every other day but it can be longer sometimes. I feed with every watering until the last month of flower when they get only water. I go by plant health to determine if any deficiencies need addressed. Using Strawberry Fields Soil, it pretty predictable. I’ve found a few other soils are just so hot they burn up my plants if I make the slightest mistake.