The plant is about 8 weeks old, and there are a lot of yellow leaves. I have read that this may be a Nitrogen problem, but the soil that I am using is rich in Nitrogen.

The younger leaves are usually green, but I have noticed that they are becoming more yellow as well. Temp ranges from 63-78, humidity is around 30-50%. I have a 400 watt HPS bulb about 2 feet from the top of the plant.

The soil that I am using is: Miracle Grow Potting Mix (SCOTTS MIRACLE GRO 70778300 POTTING MIX+MG8QT/6 - A Black Horse.com, Inc)

I have included some pictures that will hopefully help determine what is wrong. If you need to know any other info, please let me know. Any help would be appreciated! Thanks,
ChrisToph88 Reviewed by ChrisToph88 on . Yellow Leaves - PLZ help! The plant is about 8 weeks old, and there are a lot of yellow leaves. I have read that this may be a Nitrogen problem, but the soil that I am using is rich in Nitrogen. The younger leaves are usually green, but I have noticed that they are becoming more yellow as well. Temp ranges from 63-78, humidity is around 30-50%. I have a 400 watt HPS bulb about 2 feet from the top of the plant. The soil that I am using is: Miracle Grow Potting Mix (SCOTTS MIRACLE GRO 70778300 POTTING MIX+MG8QT/6 Rating: 5