Couple plants with problems...input wanted

Hey everyone. I need some fine tuning on a couple plants in my 5x5 flower tent and your opinions matter to me. So I’m running 1200 watts growing in soil and have had really no issues up until now with 2 out of 11 plants. I feed about every three days or so sometimes four. I use GH Maxibloom, Calimagic, and FloraMicro. Ph always around 6.5-6.7 and I water with run off.

the first one is this...

I think this is a Calcium or Magnesium problem. Not sure. Leaves feel a bit brittle. Maybe light burn?

The second plant...
Not sure why I can’t put a damn picture in here all of a sudden but the pic is attached.

This one I’m thinking N cause some of the lower leaves are dying off but again not sure. This plant is in the corner of the tent as well and all of its leaves look pale green

Thanks ahead of time for thoughts and suggestions

Looks kinda like magnesium bro

G.I.JOSE said:

Looks kinda like magnesium bro

Click to expand...

On the one with two fan leaves?

Yeah, when you said it was just a lower portion of the bush, it's usually a magnesium deficiency. Are you growing in Coco?

If it was nitrogen it would be completely solid yellow versus blotchy like the picture shows

Pic of Nitrogen def

The one with two fan leaves looks like micro nutrients. Cal mag sulfur boron iron etc. if you have a feed with micros they should have everything u need