MG or ZN?

Hey

Having a hard time figuring out what this is..
3 different symptoms...
Either Mg or Zn?
It's progressing very slowly though..
Lockout perhaps?

1 month into flower.
Soil grow. Ph is fine.
2L bottle. Not root bound.
Everything is pretty ok, except for this def.

Any ideas?

60SOG

hard to say but a well-rounded fert or transplant into decent soil might be the answer.

Might just be plain ol' nitrogen deficiency.

Symptoms of Nitrogen deficiency include; red stems, small growth, pale appearance to the plant, and a rapid yellowing of the lower leaves that spreads up the plant.

http://www.royalqueenseeds.com/blog-cannabis-nutrient-and-deficiency-table-n88

Well, I've been feeding her 8-4-4 in veg and started 3-7-5 when switched to 12/12, and always at 1/2 strength.
I transplanted her 1 month ago with good soil.
Nitrogen usually yellows in a more uniform way, from what I've seen. There is a bit of yellowing between the veins, and the edges. Although the lower leaf (2o pic) which is green, has yellow veins!!
Should I try full strength and see what happens?

Yeah, she might be hungry. Doesn't look like any toxicity so one would assume deficiency. Try 3/4 strength or feed more frequently with the half strength.

when yellowing starts on the bottom leaves first it is often magnesium deficiency

Thanks for the input everyone!!
I'll get right on it!

looks like mag to me also