Deficiency or??

Hello I have 2 plants growing in FFOF showing 2 different symptoms I was wondering if anyone can tell me what they think is wrong

Using philzon 2000w cob led

speckles on one leaf from cookies autoflower thats in week 4 of flower

And 2 blotches on green gelato leaf week 6 veg

Both 24 hr light cycle
Watered with tap water ( usually sitting at 6.8 -7.0 ph) in well ventilated room with oscillating fan sitting around 50RH and 70-80 degrees


Please see pictures
And appreciate all the help i can get trying to learn more about growing conditions...

have you looked under the leaves for spider mites?

ubluntu said:

have you looked under the leaves for spider mites?

Click to expand...

ya seems more like burn holes then mite issues

Looks like calcium deficiency. Leaves are overly green looking. Usually too much N or not enough P. If its the latter, then your ph is prob too low. If you didn't account for it or adjust as you go, ocean forests ph is around 6.0 This is too low for Ca and P to be used, correctly. May also just have to increase your dosage. Lmk what you think about these couple things. Same for both, btw. Cal will show much worse in flower than in veg. Different plants show in slightly different way too.

I am noticing the PH run off is 4.2 when 7.0 is going in