Browning on fan leaf??

Can someone diagnose this browning on this leaf... This is my setup, can anyone think of a better one using the lights i currently own?

very nice... as i said.. less plants in a smaller space will use those lights better but good luck on your first grow!

do you mist your plants? if so thats whats causing it... i had the same problem.

yes i do mist them actually.. i usually mist them a few times a day instead of giving them a bunch of water poured on them... hmmm interesting - thanks ! why does misting cause that?>