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Yellow shoot?

shasamstarted grow question 5y ago

PH at a constant 6.1, DWC team at a constant 18 C, Veg week 6, recently added Cal - Mag that addressed evident cal def, Nutes have been stable and leaves looking healthy, nothing out of the norm yet this new shoot is unusually yellow, never seen one like it. What could this be

shasam

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Leaves. Color - Yellow

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Experimentgreenanswered grow question 5y ago

I usually associate that very yellow new growth with iron or root stresses. Are you using any sort of hydroguard or similar product?

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Selected By The Grower

shasamanswered grow question 5y ago

No root guard or anything, running a sterile DWC ... roots look healthy and creamy white

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