A
Afghan Kush
Guest
Hello guys,
I hope someone can help me out. I decided to grow a few plants again after a long break (10 years) so I am pretty much starting from scratch.
Unfortunately this grow is not going as smooth as my last grows so I need some help.
My leaves are curling up and I am getting yellow/rust colored spots on my leaves. My plants just don't look good, I think I have a PH problem which results in a Magnesium deficiency.
Here are some details:
I am growing on soil, COMPO Bio-Universal soil
Temps are usually 26C to 30C (78.8F to 86F)
Fertilizer is BioBizz Grow (only given once about 2 days ago)
Strain is pure Afghan, 4 weeks old
Now more info about the problem.
First I noticed my leaves curling up and I thought that it was heat stress but now my leaves are getting those yellow/rust colored spots and I think that I have Magnesium deficiency.
So I went to the pharmacy today to purchase PH test strips to test my water.
My tap water has a PH of 7.2 maybe 7.4 and I have been watering with that for the past three weeks. Now that I know that my PH is a bit too high I have added 1ml of Vinegar to 2L of water today to lower the PH to 6.8.
I am planning on lowering the PH to 6.5 the next time I water my plants and keep it there.
Here are a few pictures of the lower leaves, do you think that my diagnosis is correct?
Thanks
EDIT: Forgot to add, plants are 4 weeks old.
I hope someone can help me out. I decided to grow a few plants again after a long break (10 years) so I am pretty much starting from scratch.
Unfortunately this grow is not going as smooth as my last grows so I need some help.
My leaves are curling up and I am getting yellow/rust colored spots on my leaves. My plants just don't look good, I think I have a PH problem which results in a Magnesium deficiency.
Here are some details:
I am growing on soil, COMPO Bio-Universal soil
Temps are usually 26C to 30C (78.8F to 86F)
Fertilizer is BioBizz Grow (only given once about 2 days ago)
Strain is pure Afghan, 4 weeks old
Now more info about the problem.
First I noticed my leaves curling up and I thought that it was heat stress but now my leaves are getting those yellow/rust colored spots and I think that I have Magnesium deficiency.
So I went to the pharmacy today to purchase PH test strips to test my water.
My tap water has a PH of 7.2 maybe 7.4 and I have been watering with that for the past three weeks. Now that I know that my PH is a bit too high I have added 1ml of Vinegar to 2L of water today to lower the PH to 6.8.
I am planning on lowering the PH to 6.5 the next time I water my plants and keep it there.
Here are a few pictures of the lower leaves, do you think that my diagnosis is correct?
Thanks
EDIT: Forgot to add, plants are 4 weeks old.