Help with possible iron deficiency

hi everyone, hope everybody's well having some troubles with my girls.I believe it's a iron deficiency but unsure so wanted some more insight. What I believe to cause the problem, ran out of GH floramirco but had some GH floramicro (hard water, didn't have Ro before just got one). So I used that on the first few feeds, until pick up so normal floramirco.
pics Are from veg and flower same problem.
Bottom leaf pics from veg not flower.
flower all tops have a fade from the middle outwards

what I done so far to help.
Flushed with ph ed water.
add half strength base nutrients.
flora spray cal mag and iron cheetah.

Setup
750w
ebb & flow 4x4

nutients
General hydroponics
Mag cal
Normal flower boosts
So far no improvement.

any help would be help Thank you

View attachment 3408618 View attachment 3408619

Low N and you have PM too!
FEED them and get some Green Cure and treat that PM!

Yeah your right, but what would be the most effect way cure the defficiency?
Thanks

The simplest reason for this deficiency is bad PH ( it interferes with normal FE uptake ).

Something new everyday. Thanks current my ph is 5.8 -5.9 range. Hopeful the girls will come back. Thanks for everyone input