By the sound of it ur overwatering them u should feed every other day around 200 - 400 mls per plant I'd let the soil dry up abit leave it about 5 days and then start the watering again but remember every other day !!!

"don't wait for no man he will only want 2's"

(everything I post is copied and pasted from the Internet and complete bollocks)
Stukez Reviewed by Stukez on . first timer here ... need help plants are browning and dying ... completed form What is your experience level? beginner Your Equipment: .1) Type and wattage of lights. 300 CFL from home depot with the silver bowl-like reflector and a windshield reflector surrounding the 4 plants .2) Distance from tops? 4-8" from top of plants Rating: 5