No exact answer to that, it will vary according to many factors. For soil, the simple answer is wait until the pots feel light and nearly dry, then give them a slow and thorough watering until you get some run-off (10%). Lightly squeezing the sides of the pots helps to get the water evenly distributed. The best way I've heard it said is that cannabis needs wet/dry cycles. Curling leaves or droopy leaves means you've watered too much too often or not enough. Some stick their finger in the soil to the knuckle to see if the soil is dry, others feel the weight of the pots. It's just something you'll learn through experience.