Purple/yellow/orange leaves

BreadB

Member
This started cropping up not long after a switched my lights to a higher intensity so I thought it might've been that at first but now I'm not so sure.
I've dimmed the lights gradually over the past few weeks and moved them further away. It doesn't seem to be getting much worse but its definitely worse than few weeks ago. Both plants have the same light, same soil and same water, so a bit odd how it's only happening to one of them

Strain: White Widow
Medium: Dr Greenthumbs Turbodirt
Water pH: Haven't tested but based on my area's tap water, probably about 7.8-8 - a bit high I know
Location: Indoors against exterior wall

It is winter here, so temperatures have been fluctuating a bit. My tent is probably 22-28C during the day and 15-18C at night
This is what I'm guessing is causing the purple leaves at least. We've had a few nights that have gotten down to about 6-7 degrees outside though.
 

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