From the description I was expecting a LOT worse. That plant looks healthy, if a bit scorched. VERY slightly.
When you've got problems, there's a form at the top of the problem section with info on your conditions that you can fill out for MUCH better answers. Just copy and paste it into this thread.
Edges curling up is indicative of heat stress so raising the lights was agood move. Also, heat will make fertilizer burn more damaging to your plants.
stinkyattic Reviewed by stinkyattic on . Leaf question? I have a White Widow clone and it's been about a month since the date on the clone 1/15.. so, my problem is the leaves are starting to droop. Especially the bottom 2 fans, and the leaves facing my 400watt HPS light are getting black or brown tips and curling up, the ridges also seem to be experiencing a burn.. which i think may be my nutrients. I'm awaiting my water meter right now so I can't give measurements, but what sounds like the main problem? They feel a bit dry to the touch so i've been Rating: 5