Quote Originally Posted by stonehenge
Thanks everyone.
I'm going to be upgrading lighting soon, most likely to better fluorescent bulbs.
How often should I be watering them? Should I be letting the soil dry out before rewatering?
Yes, Let the soil dry out but not like desert When they're good with moist, leaves will be up and plants will grow well every day, you'll notice. When they need more water leaves will start curling down, pots will be light, when you put your finger in to soil you will not feel the moist. Thats the time for watering again. Slowly water until water comes out from drainage. Dutch Pimp said, you need some perlit in your soil. And don't press the soil. If you don't have perlit in there and if that is pressed soil then don't wait until water comes out. Just give 100ml per plants every other day or two, three times a week.
These plants are not so big, you can grow same size and healthier plants in a week under good conditions. If you're going to change lights and the soil then plant some more, you'll notice latest seedlings will be much better than these.