Hi Guys i hadn't used any nutrients up till this point; is that not more likely to cause the issue?
Im only really focusing on this being the problem because of the following:
Water is coming from a filtered RO feed
Temps are a consistent 20-30 sometimes going up to 33c on the hottest day
No nutrients had been used at all
I'm using buffered coco withg perlite
I'm really trying to practice watering when the medium is drying
This is so confusing!
Thankyou for the helpful comments!