Yellowing Tips

[Tahiti Allen]

Howdy Gang!! I took 3 clones off " Big Mama" and they are 10 weeks old and 28 inches tall.:hubba: For some reason, the tips of the top leaves, have turned yellow! My room temperture is about 78° and the ph of the water, I use is 6.5. I'm using Advanced Nutrients Grow and giving them 1 teaspoon per gallon, per plant, every other watering. I have very good drainage every watering! I just started them on 12 and 12, one week ago! :headbang2: My lighting system is a 400 watt Hps, about 10 inches above them. I can't figure out , why the tips have turned yellow! Check out my photo's and you can see, what I'm talking about. :holysheep: I want to stop this from going any further, so please, help me figure out what's wrong!!

 

[bombbudpuffa]

Looks like slight nute burn to me. Ease off with the nutes just a lil.

 

[TURKEYNECK]

My lighting system is a 400 watt Hps, about 10 inches above them.

this sounds like the problem, the light is too close.

 

[trillions of atoms]

yellow tips say nute burn...lay off nutes and growth will continue strong- raise the light as leafs curl causing stunting as well



everythings fine

 

[slowmo77]

:yeahthat: sounds good to me

 

[trillions of atoms]

as i re-read that




incase i wasnt clear, the light being to close causes stunting- the nute burn will stunt growth too but leaf roll inward is a sign that the light is to low. the yellowing tips could be a cause of to much nutrition......