I have the same thing happening to mine altho the plant it self is doing great its been in flower about 2 weeks now and it doesnt happen to the top leaves only the lower ones it doesnt seem to be affecting the plant at all
the hps bulbs at lowes and home depot are for street lights and outdoor use.I used two of them before and got the same yield I would have got if I just used regular 100w Cfl
hey I started my first "real" grow about a month and a week ago started under 100w cfl and mine are going great moved them into 5gal buckets cant wait to see what happens