Hello again everyone!!

I just put my plants into 12/12, 3 days ago and changed the nuets and I have got about 3 problems already.

Mites - I have dealt with and will continue to.
Yellow to brown spotting on middle leaves. They also are getting discolored edges.
And also leaf edges are curling and some appear ragged or torn.

Using:
Fox Farm - Ocean Forest Soil
Just fed Sunday- Fox Farm Tiger Bloom, Big Bloom, and Open Sesame at 1/2 recommended dosage. Neut PH 6.0
Temp - 85 hi, 70 lo
Humid 30%
Lighting - 1000W HPS 36" above tallest plant
Vent- Ceiling exhaust 12" above light, 20" box fan blowing horizontal above plants and below light, active intake "exterior air from under house" exhausting directly in front of box fan, 20" box fan outside of room blowing into room directly on plants. during lights on
Lights off - passive exhaust and intake with 20" horizontal blowing

I had a hard time balancing PH and added a lot of PH up, mostly potassium. Thought I may have OD the Potassium.
Found this on Potassium toxicity in Greenmans Plant Abuse.
Potassium (K) Toxicity
Usually not absorbed excessively by plants. Excess potassium can aggravate the uptake of magnesium, manganese, zinc and iron and effect the availability of calcium.

Calcium is the only nuet not included in this weeks feed schedule so I fed today with 1Tbl spoon per gal Molasses, trying to add some Calcium.
The curled edges and spots seem to be just on the Sativa, and not just the top.
Will PH soil after it dries up a bit. Forgot to.

What do you think?
All input is appreciated, THANKS.
Dreadscale Reviewed by Dreadscale on . Multiple Problems Hello again everyone!! I just put my plants into 12/12, 3 days ago and changed the nuets and I have got about 3 problems already. Mites - I have dealt with and will continue to. Yellow to brown spotting on middle leaves. They also are getting discolored edges. And also leaf edges are curling and some appear ragged or torn. Using: Fox Farm - Ocean Forest Soil Rating: 5