Yellowing around edge of leaves can't figure it out

UncleBen says "keep them green" but that sure is easier said than done. I can't figure it out.

A month old. In soil. 1000 watt light on 75% power, 12 inches from top of plants on a moving rail. Given the plants SensiGrow nutrients twice. Water every 3 days.

Not sure w/o knowing more details, but that looks almost exactly like the slight Mg def my Qrazy Train developed that took awhile for me to figure out. Have plenty of hours growing w/F&D hydro and never had any problems b4. Apparently the QT was unique in my system, or maybe that pheno.-? Anyhew, supplementing the Botanicare Pure Blend w/just a dash of epsom salts did the trick. Recovery was slow and like other nute defs only new growth shows improvement apart from the parts of the leaves still green turning greener and the edges getting yellower. Good luck.

Looks like a magnesium def, easily cured well balanced feeding, cal/mag or epsom salt will do the trick. Here is a link that shows you different def. in your plant. Welcome to RIU hope you enjoy yourself here.

https://www.icmag.com/ic/showthread.php?t=11688

canefan said:

Looks like a magnesium def, easily cured well balanced feeding, cal/mag or epsom salt will do the trick. Here is a link that shows you different def. in your plant. Welcome to RIU hope you enjoy yourself here.

https://www.icmag.com/ic/showthread.php?t=11688

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What he said.