Ok, so I have one three week old, and two two week old bagseed plants under a 150 watt hps. They are in 1 gallon pots. They are four inches away from the light. They are on 18/6. The three week old started on it's second set of leaves recently, the other two are still holding onto their cotelydons. They all show sativa dominance. Is this the normal rate of plant growth? I have no nutes on them, just 2/3 regular soil, 1/3 pearlite. Reverse Osmosis ph 6.5 purified water. Desk fan keeps them moving vigorously. Temperatures range from 78 to 88 degrees depending on outside temperatures. No Co2, no artificial humidity adjustments, medium local humidity (Cali desert area).