Cant diagnose (check pictures)

Don’t know if this has been said already but it’s a non-mobile element since it’s top growth.

A rough guide is if it’s deficient in micronutrients the pH is too high.

If it’s on the lower it’s primary, secondary nutes responsible.

Check your pH the. Go from there

Bukvičák said:

Zinc is not mobile...

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Jorge Cervantes claims it is in my grow bibles but reading about the symptoms it certainly acts like an immobile one. I feed my plants extra Zn as it is a catalyst in many of the chemical processes in living things and often overlooked. Sure helps with my prostate issues.

420mlet said:

yeh Im 24” from top its Mars TS-1000(150w) manufacturing recommendations I just dimmed lights to 85% got lack of space in my Gave them feed today with 1ml/L cal/mag and Ill see how it will go

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Right, a mars hydro 1000 is only putting out around 450umol at 24", which isn't much.. at 18" they put out about 700umol. I don't think that light should be an issue. if temps are fine in the area, I don't think 400umol is going to burn a plant.

Would be interesting if that was the case. I'm at 12" with a TS 600 and 2x"120W"
(actually 23w) e27 led sunlike bulbs in a 3x2, basically seedlings and haven't had any light burn, and I'm at 21/3 in 30c plus temps.