What can this possibly be

I’m new to all this, I’ve done quite a bit of research but I can’t figure out what this is.. I think it’s cal mag deficiency but not sure. Any info is greatly appreciated!!


Leaves come and go. Please post pic of the whole plant.

It’s only on the lower fan leaves..

Had one do this no matter how much cal mag I threw at her. I do believe it was a manganese deficiency not magnesium . I haven’t had it once I started using molasses throughout my grows. I might be wrong but it is what I came up with

Need some help identifying what this could be, it’s mainly on the big fan leaves but has just started to move to the smaller ones starting at the bottom!! I’m thinking, not enough nitrogen or I’m over watering it a bit!!

I did, wasn’t wanting to load them at the same time .

That is a lot of plant for a solo cup, hard to imagine overwatering…But it looks like you have the cup in a cup…its important that the roots do not sit in the runoff water. Will cause salt build-up and ph issues leading to lockout.

To really troubleshoot we need to know more about what soil you are using and what you are feeding it. ph and ppm of your feed and runoff is helpful too.

Turns out its just a lack or nitrogen, hard to believe but it is!! This little thing surprised me a lot!! Soil is promix, and I’m using the GH!! Sometimes I top dress with mother earth, the flower one!! It’s +100 days old!! I’m thinking slowly flush then chop chop!!

And it uptakes the water between the cups first!!

Also I don’t control ppm or pH, the plant does that itself!! I go to a little run off each watering/feeding!!

You definitely need that plant in a bigger pot. Unless you were doin a solo cup challenge. Which I’ve done a couple of times. I done one in a 2oz solo cup



But the plant is gonna have issues when the roots have nowhere to go. :victory_hand::love_you_gesture: