Ya hmmm that looks like something I've saw before but I cant remember. Did you disturb the roots at all lately?
Mine seems to be doing much better now! Don't see many of those spots or any new ones developing.
Im going to try some organic fungicide. Will let you know how it goes
Edit, also i remove affected leaves regularly and hsve moved one plant away from it. Now that i think about it i believe I've saw this issue on the leafs in the trees in my yard so possibly that's where it could have came from
Ive got some type of brown spots that seems like calcium def but i feed with calmag every watering and i also have well water that's 7.0/320ppm out of the tap.
Of 2 outdoor plants this is the only one with these random spots. I want to say i noticed it on older leaves first.
Im about 4 weeks...
I mean i agree mostly but i flushed 2 weeks ago, only fed pure water and it's still happening. It's definitely weird that only 1 of mine is going it with the same feed, same soil, and up until 2 weeks ago all outdoors. Im not too worried about mine because n toxicity causes the leaves to turn...
Also i have 3 gg4 and only the one is doing the curling so i do find it strange. 2 outdoors, one that was started indoors, moved outdoors for a few months and then went back indoors after I finished moving. The one curling was started indoors and moved outdoors. All 3 are on thr same exact...
I have the same thing with my gg4 photo about a week into flower it started. My plant has never had any issues and shows no sign of deficiencies, lockout, or nuts burn.
At first i freaked out thinking i gave it too much nitrogen so I started by Just flushing and no nutes. Didn't work so i went...