Spots on leaves?

[Budler]

Hello guys,

have a a look on the pictures please, what do you think what’s this?
Ph 5.8-6.1
ppm 700
600w full spectrum hps 24/7

[alltatup]

Budler, It's your lower leaves, right? It looks like pH problems to me. Perhaps if you flush your plant thoroughly and then let the pH range a little wider, between 6-7 for a soil grow.

https://www.growweedeasy.com/ph

Check out that page. You will see a chart of which nutes absorb at which pH level. If your pH isn't ranging up and down, your plants aren't able to absorb all nutes, and then you start getting symptoms.

[Budler]

I’m in dwc, I think it can be calcium maybe. I’ll do a Rez change today.

[Toker1]

Drop the PH to 5.5....then let it swing back to 6.5 over a few days period of time before you adjust again. Adjustments should only be made twice per week or so. Don’t chase PH...it really needs to fluctuate between these two metrics in order to grow healthy.