Weird Lookin problem...looks like mold maybe??? HELP PICS PICS

Hey everyone,

So this is my second grow and i decided to use nirvana soil and flower tabs. As they are still in veg, i am only using the soil tabs. I water every other day because they are planted in coco coir. The temps are a bit high 30 - 32 C as i have not put in the A/C cooling yet ... will be done tomorrow.

I started noticing these weird yellow patches on the leaves...dont know what they are from...doesnt look like any deficiency to me. Might be nut burn???? Or mold cuz if you look at the fourth picture here, there is sum stuff forming on the leaves and it looks very weird. Now i have 4 plants all using the same soil and fert and only 2 are showing these symptoms.

Can i get some help please???

Check for bugs under said leaves. No bugs? Good you do not have a problem, the rest of the plants look fine just keep an eye out for signs of it spreading but I see no issue now.

i see your problem ur growing in soil... just saying man that shits way easier to correct and diagnoise in hydro.. but thats ur choice.. my educated guess would be that u have to much iron in ur nutes ether lower them a tad for that plant or check its ph it could be a bit high causeing the plants to pickup a higher level of iron since plants pick up more of a certin nute at different ph levels