Is this calmag or nute burn

Northern lights auto in FFOF 7weeks old

Is this nutrient burn?
Or calmag deficiency

Only these two leaves have this damage.

Looks like nute burn to me. Look at a light through a leaf, if you see little pinholes of light coming through it’s a cal def. if not it’s nute burn. There might be a k def or lockout going on in addition to n tox

93OG said:

Looks like nute burn to me. Look at a light through a leaf, if you see little pinholes of light coming through it’s a cal def. if not it’s nute burn. There might be a k def or lockout going on in addition to n tox

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Its most likely nutrient burn. I thought they were all ready for a max feeding but they weren't. They all got a little burnt. So I gave them water then next feed reduced nutrients. Hasnt been getting worse so I think I'll just remove the burnt leaves and lean on the side of caution. They're all about to go through the swell and the NLA is already going through it.

Its different feeding 4 plants vs 1 I was just feeding them all the same amount. But I've realized they're all requiring a little less or more per plant.

Its really hard to tell. It does look like calcium deficiency with the dots. However on the tips there seems to be a lot of calcium deficiency, too much to be a calcium defeciency. I would say you have burn. Lower your feed by 0.2 EC.

Porky101 said:

Its really hard to tell. It does look like calcium deficiency with the dots. However on the tips there seems to be a lot of calcium deficiency, too much to be a calcium defeciency. I would say you have burn. Lower your feed by 0.2 EC.

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I did. I gave plain water the next feed. Then when I resumed feed i just gave 25% less.