So I'm starting my seeds today, I have them germinating now. They are all white widow. I have a 400watt hps lamp, and 3 gallon buckets. My soil is a mix of 3 parts potting soil with food enough to last through vegging, 1 part peat moss, and 1 part earthworm castings. There is an inch of sand on the top. My grow room is small, about 5'x5'x6'. The walls are lined with reflective material. I'm planning on having four plants, and vegging for 12-18 weeks and flowering for 8- 12 weeks. Does anyone have a ballpark on what they expect me to yield? This is my second grow.