If you are still in veg i would try to go with a bulb that is closer to the blue spectrum. Like 6500K or around that number. A red spectrum is better to be used on flowering plants, 3000K. As far as watering almost every day may be a little to much. Wait for the top of the soil to be dry, then stick your finger in the soil if you get past your first knuckle and it is still dry then add water. When I was using 2 gal pots I was adding water ever 4-5days and that was under a 400watt hps. Also check the water you are adding to the soil. If the PH is to low or high it can cause slow growth.