Need help identifying

So I'm currently in week 4 of flower and one of my girls is showing symptoms of something and it happened relatively fast (1-2 days)
Soil
6.2 ph
1100 ppm
45%rh
Light is 13 inches away
Ventilation is always on

What are you using for a light? If it has a brightness setting, where do you have it?

I'm using a mars hydro ts3000 set to 100% and has been for 4 weeks. The problem just started 2 days ago

I'm not sure if 100% of 450 Watts at 13 inches is too much necessarily for your plant's stage. I might try it with my light, but that's a 300 Watt TSW 2000. The reason I brought it up is because the leaf you showed seemed a little bleachy and crispy to me. Maybe it would help people diagnose your issue better if they could see a photograph of your entire plant. Is that something you might be able to provide?

The leaves that are being affected are on 1 plant only and they are coming more from the middle of the plant. This stupid site won't let me post any photos right now. It keeps corrupting the files

Tokeybear12 said:

The leaves that are being affected are on 1 plant only and they are coming more from the middle of the plant. This stupid site won't let me post any photos right now. It keeps corrupting the files

Click to expand...

Ah, okay I understand. That's too bad you're having issues uploading. Maybe if you're trying the Desktop site, you could try the Mobile one or vise-versa.