New Grower Possible calmag deficiency?

[Sour3D]

Hello, some what of a new grower here. Completed 2 successful pc grows and now I have moved up to an actual tent (80*80*160cm). I'm currently growing 2 plants under a 300w (136w actual) Viparspectra. One of my plants is looking like crap, but continues to grow without slowing down. So my question is what could this possibly be?
I'm using BioBizz Grow and Bloom @ 2ml/L and Advanced Nutrients CalMag also @ 2ml/L. Last 2 grows I was able to get away with a simple soil ph kit and did fine. I'm using same soil and nutrients, only set up is different. Will be picking up a proper ph meter hopefully tomorrow to try and find the problem.

 

[namvet25]

I would just feed her veg nutes until she starts flowering and keep using cal/mag at every watering.Other than that one leaf she looks fine

 

[Sour3D]

I would just feed her veg nutes until she starts flowering and keep using cal/mag at every watering.Other than that one leaf she looks fine

I have been doing some research and found that it could be light burn. I have raised my light and will just continue to feed her like you said and just keep an eye on it.

 

[BBoomer]

Im new to growing so take what I say with a grain of salt lol.. But it looks like you might have splashed some nutes on that one leaf.

 

[Waira]

-- I just chatted with a grow master about these very same set of symptoms on another plant... I was never sure about this, it doesn't fit any defc/ toxicity well, or off pH issues.....
It's probably an soil pathogen that got in, lowers are more vulnerable for this,... definitely not light burn, the tops would be cinders if it cooked lowers that badly, and the symptoms don't match well anyway,....
What did you raise the lights to?