Curling, dark spots looking bad. HELP! {pics, form}

[Rusty Trichome]

Upcurled leaves is a sign of too HIGH humidity???

I'm pretty sure I didn't say that. The pillowed/scorched leaves look like high humidity with scorching. If ambient humidity is averaging low, then overwatering is the next suspect. The plant tries to respirate-out the extra moisture, but can only respirate sooo fast. (I believe this builds-up the moisture in the leaves, swelling 'em up)
Humidity surrounding the plant will vary from ambient humidity.

As for water, the ph out of the bottle is 6.1-6.2, I realize that is a little low, and I have measured after the calmag (6.5) (so yes I was phing it with the calmag).

Would stop using CalMag as a ph adjuster. You're overdosing them, with a long-lasting component (calcium) which will in turn...screw-up your soil chemistry. Why are you using bottled water? Something wrong with your tapwater?

The only phUp I have is the one for aquarirums (which is a no-no) and I haven't used that. Any natural alternates to phUP the water?

Ummm...baking soda or something like this: Ph Up

[johnnypants]

Yes my tap water is unusable. It's buffered at 8.0, I hear municipalities will do this to prevent acidic damage to city piping....

I'll try a little baking soda in a bottle of distilled and see....

I'm really curious to know what the strain is.. I'm 99% sure that the plants that are doing well are seeds from a friend's outdoor NL grow. These bad ones may be from some that I bought previously. The leaves are a little broader with less tips...