Hey guys. So my germinated seed sprouted a few days ago and now leaves are starting to appear out of the seed that's held up by a small stem. There are 3 nice leaves and one small brownish leaf that looks sick. In the picture, the leaf in question is on the right. I'm wondering 1) is this normal? 2) what caused it? 3) can I fix it? Is this just an old leaf dying to make room for better ones? Or Am I frying my plant? I'm using a pretty basic cfl tube ~ 3 inches from the plant. The plant is in a closet in reasonable temperatures with pretty good humidity. Is there a nutrient deficiency? Is pH off? Let me know! I don't want my plant starting off wrong.