What type of medium: Soil What brand and type of soil: Miracle Grow Potting Soil Indoors or outdoors: Indoors What strain: Purple Haze How old are the plants: 16 days What type of lights and how many watts: Per plant: One 100 Watt OttLite; 1 Red 60 Watt CFL Bulb and one Blue 60 Watt CFL Bulb. How far from the lights: Approximately 3 - 4 inches What is your watering frequency and source of water? Brita Filtered Water once every 3 days What, how much and when was it fed? NPK: No nutrients added to date What is the medium/runoff pH and PPM if in hydro? What are the temps and humidity in the room: Approximately 70 - 76 degrees What size pots? 5 Gallon Bucket Any bugs? Look real close: None Any other pertinent info: The plants recently were moved from a closet to the inside of a hollowed out dresser for better cover. This is the first problems I have had with either one of the plants thus far. The problems only seem to be apparent on the left plant. Just the yellow'ish splotch on one of the leaves and a bit of the same on the very tip of another directly next to the splotched leaf. They are both lower leaves. Also, I have noticed that the leaf stems of the left plant are a brown color whereas the leaf stems on the right are a healthy green. Why is this? Thank you so much for the help!