What are these symptoms called?

Destroyer of chairs

Well-Known Member
Wanna research it some more myself but not sure how to describe it.

If u have ideas of what is causing the symptoms that info is greatly appreciated as well.

QUANTUM BOARD 240w at full strength 0.5m above canopy.
Northern light.
About 2 months old.
Aiming for 5.8 pH but it is indeed rising in between feedings. Feeding every 3-4 days 5 gal hempys, bottom rooms 1 gal feed res.
Room temp is 22-26.5c and RH 39-65%
Getting less than half nutrient strenght.

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