My leaves are curling up

re: My leaves are curling up...

could do with a better description of what you have and if possible pictures. but leaves curling could be due to temps or nutes.
 
re: My leaves are curling up...

I have them under 600 watt blue metal halides. Ive been feeding with flora nova 7-4-10. Ive been diluting 4 tbsp per 5 gallons of water. I have them in gardners grow soil in 3 gallon grow bags. I give them 1.5 liters of water every 2-3 days.
 
re: My leaves are curling up...

Pics would def. help

A few questions:

Are they literally curling up or curling down?
Is there any discoloration in the affected leaves? If so is it in the veins? In between the veins?
Is the curling happening on new growth? Old? both?
How often are you changing the water?
What are your water temps?
 
Re: My leaves are curling up...

pH_chart71.jpg

cannabis_leaf-deficiencies312.jpg

What is the ph of the water it could be a deficiency
 
Yes, pictures would help alot. You could always take a few to your local hydroponic store and ask someone there. Good luck, you have a lot of time to fix your problem. Aloha
 
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