4/16: I think I overwatered them so I've cut back and the new leaves are looking good. I'm waiting for the soil to dry out more before I water them next. Thea is a little behind her sisters, but she was the one who was late to start. From what I've read, I don't need to start feeding them until week 4 as they were started in Fox Farm's Ocean Forest. So in 2 weeks I'll start the feeding schedule. From everything I've read, it's good to put in half what the chart recommends every other watering. Hopefully I can get a good watering schedule figured out. The humidifier has helped get the humidity up to around 60%.
@neonnitelight, I went through the whole home made grow box thing. It was tough to control the heat and humidity even when running an exhaust fan. You can use a cool mist humidifier and put it near your fresh air in take. I eventually switched to using a grow tent because the box I built held too much heat. The thin walls on the tent allowed it to cool down better.