COCO COIR Strange amorphous white splodges and general unhappiness

[NewbieGrower]

Setup:
Coco Coir
Watered every day, alternating neuts.
24 hour light schedule, currently in veg
temperature and humidity all climate controlled, with good air flow.


My plants have had a few teething problems as I'm a new grower and I'm getting a handle on nutrients/schedules and the like but it seemed to be doing well for a few weeks. No discoloration. No dropping. No pests. But over the past few days I've noticed some strange white marks on some of the leaves, as well as a general drooping/unhealthiness about them. Attached are two photos.

Any suggestions/tips/rants welcome!

[Canuck147]

Overall they look real nice, good color. I would guess watering them everyday would make them droopy. Let them dry right out in between waterings.

[Campesino]

I water my plants in Coco/Perlite everyday without issue. It is the appropriate way to water Coco/Perlite, which should not be allowed to get totally dry ever.
I guess I don't really see the issue that is worrying you. Regarding droop, when was the photo taken relative to their light cycle? I'd need a better shot of the "Strange white marks" to offer any diagnosis. But I agree that the plants overall look fine.

[NewbieGrower]

I keep the plants on 24 hours due to the climate where I live and the temperature swings. The reason I called them drooping was in relation to how they were a week ago, very upright and proud now they just seem to be lacking a little, I don't know if that's normal or not. The white marks are few and far between but there's some on each plant, I considered that it might be bleaching from a particular intense spot from the light but 1) It's not on the top-most leaves, and 2) I'm following the manufacturers recommendations +5cm to be safe. I'll take some more photos a little later, my phone is just awful so waiting on borrowing a decent camera.

Thanks for the reply!

[OzBud]

What's your pH like? in & out?