Possible heat damage?

hey there, was just checking in on the ladies and noticed some spotting on quite a few upper leaves, it’s been getting warm in the tent lately but other than that nothing out of the ordinary and seems to be targeting this plant mostly which is closer to my lights. I’m in happy frog and using a 1 part from Greenleaf Nutrients under a 315w lec. Thanks!

You've got a few issues going on. Yes looks like there's some excessive heat going on, but you've got some deficiencies happening as well. The lighter colour green as well as the yellowing outside edges. What strength are you feeding and what ph?

westcoast420 said:

You've got a few issues going on. Yes looks like there's some excessive heat going on, but you've got some deficiencies happening as well. The lighter colour green as well as the yellowing outside edges. What strength are you feeding and what ph?

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I have been building up from 1 gram per gallon to 4 grams per gallon but at 4g it seemed like too much, they just looked sick, clawing and thin leaves. backed it off to 1g per gallon again and they filled back out so they could be hungry for more than 1g at this point.(I’ve seen journals where people will start seedlings at 1g, very light stuff) Probably bump it up to 2g next watering and see. Ph is around 6.2-6.5. Using a dropper ph test kit so it’s hard to get it exact but you can get it pretty close.

Edit: Up until today I have never seen spotting, just lush green daily growth for the last 2 months.

the diagnosis tool Buddy on buddy.kindbot.io sees signs of heat stress and magnesium deficiency

Phosphorus and ph?

For sure your girls are short on Mg...very short! Your leaves are a little puckered which might be because of your lighting, but if you haven't changed your lighting lately and the plant isn't growing up into your light, I might let it go and watch them. Start by solving your Mg issue and then go from there.