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Yellow/burnt leaves tips, what's the problem?

GrowCann

New member
Hey guys. I need some help, sorry if I have some english problems!
I'm growing this beautiful Jack Herer from a clone, using a 150w led, tent has a good air circulation so temps are good.
I'm using a soil with coco fibers that I've bought, not perlight, no compost, no homus.
Nutritions are BioNova's Super Soil Mix, 7-3-6. I mix them with water according to their tables, and I water her with this solution every time she asks. (I lift the 5 liter box and see if it's heavy, also I stick my finger to see if the soil is wet inside).
From what I've read and seen on the internet I could be over-fertilizing her.
Here are 2 photos -
http://anony.ws/image/ND8S
http://anony.ws/image/ND8A

thank you very much!
 

resinryder

Rubbing my glands together
Veteran
Over fed. Back off the nutes to about half strength. The charts that come with most of the jute lines are not for cannabis
 

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