my bottom leaves are dying!!!

bhc13836

Member
my plant is about 1 month and 2 and a half weeks old.
i use a cfl flourecent light that is a few inches above the top of the plant.
the bottom leaves are turning brown/yellow and shirviling and crinkling and falling off.
and the leaves above the ones dying the tips(very tips) are yellow. and some drooping straight down.

i included some pictures of my plant.
please help
 
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