Identify this problem?

One of my plants is looking poorly and I would welcome insight as to why. Of the 15 total, this is the only one looking like this. All have been treated equally and the rest look decent. I have consulted the typical troubleshooting charts, but can't seem to find anything that looks quite like this.

Any insight would be welcome.

Looks like boron deficiency to me.

It looks like a P deficiency to me. Are the stems purple or dull blue? If they are, then it is almost certain. Plants use a lot during bloom, and bloom foods have good amounts in it, so it can be fixed that way. Good luck

i would agree jim but P def starts from the edges of the leaves.This looks like boron,manganese and sulfur def in 1 plant.To put it simple micro-nutes.Foliar spray will fix this and is advised to be done asap.

Stems are green. Also, these plants are only about 5 weeks old and under 18/6 lighting so they are def still in veg.

mackdx said:

Stems are green. Also, these plants are only about 5 weeks old and under 18/6 lighting so they are def still in veg.

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HotShot got the prize, I bow to his wisdom

Anyone want to recommend a micronutrient supplement?