I am trying to grow a white widow in my grow box, I recently planted her about 4 days ago and she sprouted above the soil yesterday. Her cotyledon leaves were yellow and I was a little concerned. Now today I started her on a 18/6 light schedule and her leaves are still yellow but opened up more. I dont know if I should be concerned or not., I thought the cotyledon leaves should be green. I can see her first two real leaves starting to form and those appear to be coming out yellow as well. The soil I am using is fox farm happy frog in a red solo cup. I have a little 4" oscillating fan on her and I am using a 7 band LED light 180w grow light thats on a 18/6 schedule. The light is about 4 inches above the plant. I also have a 4" inline fan with carbon filter that I am running 24/7. Temperatures run high 70's to very low 80's during lights on, and low 70's with lights off. Humidity is usually between 30% - 40% Any thoughts why my baby has yellow leaves? I am watering her with deerpark drinking water.