Yellowing Of The Leaf Edges? Help!

NorCalMan

Member
I have some clones under flourescent lights for about 3 weeks now, started developong yellow edges on some of them, not all of them. They are in roots organic 707 soil with no nutes just water. What is this and how can i fix it? Ill b planting outside when they get better. Thanx in advance for the help guys. This is my first grow and this website has helped me alot.
 

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It looks like it could be nute burn, but you said you werent using any nutes, so my guess would be a deficiency of some sort. Are you making sure to ph the water before feeding the plants. They could definitely use some nutrients. Start with a lighter feeding then recommended, see how the plant reacts, then go from there.


You know what, i did give them some botanicare pro grow, liquid karma and vermit T 2x. I juat went over my schedule. So u think flushing them with some water might b beneficial?
 
Looks like Nitrogen deficiency to me, maybe check your Ph... as I'm sure you allready know that a misbalance of the proper Ph can cause nutrient lockout, which MAY be your problem... since you said your not using nutes you might have a low ph. most commercial fertilizers can raise the Ph over time.
 
roots soil has peat moss in it, which makes it acidic. im not sure how bad it is, but people usually add some dolomite lime to it.
 
Nute burn. As your not controlling the feed to these plants you will have to flush well and maybe flush again.Dont even think about adding nutes.
 
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