What's wrong here?

[Davedude]

It's starting to take the whole plant. Others are not experiencing anything like this.

[Weed Pharma]

Check your pH!
(and I never say that, lol)

[Davedude]

pH is 6.2 water. I just can't get the soil to lower below 6.7

[Weed Pharma]

If this is in soil then, Pretty much everything is absorbed between 6.0-7.0 and it isn’t until you get out of that range you have problems.
The leaf in the pic shows classic pH fluctuation pattern.
A pic of the whole plant may tell a different story.

[Davedude]

Is Aluminum suphate safe to lower my soil pH.

[Davedude]

Or us peat moss better? thanks

[Spidermite]

6.7 is fine

[Davedude]

I should stay consistent on the water pH. I know I'm adjusting and watering the plants at pH levels from 5.9 to 6.3. strange thing is that this plant is the only one of 3 showing this kind of distress.