end of week 4 12/12 any idea what this is the start off??? pics

so here are my mainlined plants i have, the last watering i noticed these marks on the leaves can anyone help me out and point me the direction of what to do..

i have been mixing 20ltr of water and adding
100ml ionic bloom
10ml ionic boost (just started this at start of week)
5ml cal mag deficiency
10ml ginourmos

then setting the ph to 6.7

so heres the pics
1 is afghan kush
2 is blue rhino
3 is caramel ice
4 is critical 47

and next 5 is the leaves off them

thanks lads..... i was thinking leach the nutes out soil with a few waterings of just ph water but not sure if its start of overdose or not enough nutes or what

Nice plants, 4 weeks into flower I would just back off on the nutes for a while.

Could look like the early stage of Calcium deficiency (maybe even Manganese, hard to tell this early).

I have been adding cal mag stuff aswell, this is by far my best grow and I want to keep it that way haha

Looks very minor, expect to get some discoloration by mid flowering. If it were me I'd continue with whatever feeding you have been doing. Without knowing EXACTLY what (if anything) is wrong, you have a good chance of starting some actual problems if you start jacking around with it at this stage.

yea dont changes too much, tho I'm sure you could up the Cal/Mg to 10ml with no issues and maybe a quick fix as it do look at bit like Ca def. to me

Cheers lads al get a few pics up again in couple days without doing anything see what yous think

i am in 4th week of 12/12 as well and have the exact same problem. Made a post yesterday about it and everyone seemed to agree is was calcium def. Up your calmag a little bit.

looks to me like the plants were sprayed with the lights on, and if not then overfeeding P with too little Ca, your PPM for Ca should match or exceed N.

looking pretty sexy.

Hexhat has it right on man.

FWIW I use CalMag every watering at the recommended 1 tsp/gal. Also Silica. Within reason I don't think you can hurt them in soil w/CalMag

don't think I would worried about that mate ,looking good to me .

Dont calmag it. Use organic molasses. Calmag has nitrogen, they have plenty of N stored in the fans. At 4 weeks and beyond no N needed. Plants look fine.

They're plenty enough green.