so my plant is 3 weeks old, ive got it in a 6x6 inch pot with organic miracle grow. its got 4-5 sets of leaves and is about 5 inches tall. its under 100 watt of 6400k cfls. SO anyways, the bottom sets of leaves are starting to die they are turning brown and very dried out, i noticed it getting worse recently, now i looked at it today, even the tips of the rests of the leaves are starting to brown. What could the reason be, maybe nute burn from the MG?