What caused this?!?

Unikorn

Unikorn

Member
2010-10-17 15-34-40.525.jpg2010-10-17 15-33-45.060.jpg2010-10-17 15-34-56.422.jpg 2010-10-17 15-34-36.455.jpg I want to know what is causing the tips of my plants to curl up. I just made these lights. The blubs are 100 watt daylight CFL's. I only been watering them for the last two days. They're in a airpruning pot with a coco fiber mix called Roots. So it don't hold water.
 

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Some leaves look a little like calcium deficiency but some of the curling looks like early Phosphorus deficiency. What are you feeding them?
 
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