Hey all! I've got some seedlings but they've turned yellow on me. I've attached some pics at the bottom. Included the soil I'm using and a root product I used. I added 1/4 of 1 ml of the root product to the water bottle I used to mist the surface of the water. I'm running with a 600 MH (I have an LED light I'd like to add too but I'm thinking of waiting to add it). This is my 3rd grow. I germinated the seeds, put them in party cups with some holes to breathe. I'm watering them once a day when the top of the soil gets dry - I mist the top of the soil, I don't drench it. I've made sure the pH of the water was 6/6.5. I have a light fan blowing in there and proper intake and exhaust. Anyways, here are the pics! Please let me know how to cure this. Also when should I add nutes and when should I add the 600 watt LED light. Thanks again guys!