Why do my leaves look like this?

Does anyone have an idea why a few of my leaves look like this? Any help is appreciated! Thanks!

What is your medium

Soil with perlite

Fox Farm Trio

Fox Farm should be used way lighter than the bottles call for.

So this is nute burn?

Yep looks like nute burn, although potassium issues can look similar, first check for newt burn

Thanks!

How strong are you feeding?

I was doing full strength, but I'm going to back off to half. Does that sound good?

Rob Carey said:

I was doing full strength, but I'm going to back off to half. Does that sound good?

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That's nute burn alright. I'd flush them and cut back to 1/4 strength.

Thank you so much for the help!

That looks like a potassium deficiency. Nute burn is typically limited to the leaf tips only. When the leaf margins look like this it's usually a potassium deficiency caused by a low pH.

Thanks you, I kinda was thinking that before, but wasn't really sure...

Renfro said:

That looks like a potassium deficiency. Nute burn is typically limited to the leaf tips only. When the leaf margins look like this it's usually a potassium deficiency caused by a low pH.

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I disagree, nute burn is not necessarily limited to the tips. Although I did mention above that it could be a potassium issue, potassium issues normally have a yellow tinge to them as well. I suggest Opie stop feeding all nutes for a minute and see what happens with the new growth

Opie should check his run off and let us know the pH and also PPM so we could know which issue it is (it could also be a little of both) also a picture of the whole plant would help

Op, I feed newts anywhere from 1/2 to full strength for three straight feedings with no runoff, the fourth feeding I feed 6.5 water at double the volume I normally feed, & I usually check and record PPM and pH, a cycle like that might work for you? Also I'd recommend you begin adding Dolomite it's inexpensive and used as directed it virtually eliminates pH issues. Good luck!

Beachwalker said:

I disagree, nute burn is not necessarily limited to the tips. Although I did mention above that it could be a potassium issue, potassium issues normally have a yellow tinge to them as well. I suggest Opie stop feeding all nutes for a minute and see what happens with the new growth

I suspect to know for sure Opie would need to check his run off at the very least and let us know the pH and also PPM

Op, I feed newts anywhere from 1/2 to full strength for three straight feedings the fourth straight feeding I feed 6.5 water at double the amount I normally feed, think a cycle that might work for you? Good luck!

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I look at the leaf tips and I don't even see typical nute burn there, with severe nute burn the tips usually curl down. But hey, we could both be wrong.. lol

Lets ask, what PPM and pH is he feeding at.

If those are autos and you are feeding FF nutes full strength I'd be shocked if it isn't burn.

Usually 6.5 for pH, I'll have to be honest, I don't check the PPM nearly as much as I should. So I will have to double check. I appreciate all the responses!

Rob Carey said:

Usually 6.5 for pH, I'll have to be honest, I don't check the PPM nearly as much as I should. So I will have to double check. I appreciate all the responses!

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6.5 is the bottom of the good zone IMO. Below that I see potassium deficiencies in large plants. Perhaps the PPM is to strong. Worth a peek. Also make sure the pH meter is calibrated.