Green Poison - Sweet Seeds

with that bulb you need roughly 50w/sq foot in flower 12/12 schedule if i recall... so you need 2/3rds of that if running 18hours in vege... if you haven't been 'near' that estimate, even easier to eliminate or blame the light forthe cause. if it was picked out to fit the area of coverage for a 12 hours of operation, then you need 66% of that for 18hours of operation. Read up on daily light integral. it's teh proper way to measure this stuff... not watts.