is this some kind of fungus/mold??

hey guys, back with my second grow, a feww weeks into it actually

just abit worried about this white shit thats beggining to form on my plants leaves, its spreading, started on one leaf, now on about 1/10

havent changed anything since well before it formed
the leaves its on have a droop, like the "claw"
i havent encountered PM before, is it that?

temps go from 20 degrees at night to about 33,34 max during lights on (18/6)
humidity goes from around 70-75% lights off to about 35% lights on
feeding them seasol every other watering

Hmmm, what soil do you use?? Have you looked under a microscope at those white spots??

This is curious

dont own a microscope, 1/3 muchroom compost 2/3 organic potting mix

So the high humidity promote fungus

hmm could be a cause
could anyone else possibly identify whats going on or why?

looks like heat stress nothing that serious just move the light away as they mature

mate it aint heat stress, i do know my shit about marijuana, just i havent encountered mould etc before so i havent reaserched it
there little white/grey colonies/spores