Hi posted a couple times before.
First time grower here, really enjoying my new hobby.
Small tent 2 plant set-up, soil medium (Canna Terra), Grapefruit strain, using BioBizz nutrients (using Bio-grow, Bio-Bloom, Top-Max but diluted beyond recommendation as have dealt with slight nutrient burn.
So my issue is just finished 3 week of flowering yesterday and a few hours after watering today I have noticed a bunch of yellowing leaves mostly on one of my plants.
Pics attached.
(When looking at the pics its the plant on the left, which has always been slightly smaller than the other despite identical treatment)
Checking the app I'm using to track their growth they didn't display any yellowing at all last night so I'm pretty concerned by how rapidly its changed.
I'm guessing that the culprit is overwatering? I'm pretty certain I may have been doing that do much despite trying to actively avoid it and despite a relatively small watering today it seems to be retaining it a lot more.
Having had slight nutrient burn in the past I doubt that it would be lack of nutes.
Some of the leaves are pretty exposed to light so I don't think it would be lack of that, though that being said about all of the leaves are on the lowest part of the canopy.
Any help appreciated!!
Cheers
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