Hey. Im a new grower my plant is like 27 days old now since it sprouted has been in fox farm ocean forest soil the whole time. at first it started with the yellow tips at the lower/older leaves now its spreading through out the edges. I fed the plant yesterday for the first time some of the trio fox farm nutes just half of the doses reconmended the plant looks good with new growth. I have always watered with plain distilled water but i never check the ph maybe that is the problem? I have the plant in a homemade wardrobe closet made of plywood with no exhaust and just an oscillating fan maybe thats another problem?