Great suggestions thanks guys!
The tds peaked at 3500 a few weeks back as I wasn't keeping an eye on them. Seems the dosage on the bottle is way too high, but my critical kush used to love it!
Yes the temp is high. My fan has a 'high' mode which will bring it right down. I didn't turn it up as...
Strain: Big bud XXL
I'm growing flood/drain in clay pebbles. Floods 4 times/day
Currently at about week 8 of flowering.
Loads of leaves are turning brown and dying, mostly right under the lights.
I'm using 4 x 180watt LED lights over a scrog of two plants. It's a lot of light, probably double...