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Odd color in inner leaf help

UnrealTairostarted grow question 5y ago

Day 10 I noticed the leafs around the edges are all nice & green but in the inner parts of each leaf it's looking a bit rusted, more so just grey after examining the photos. Is this a deficiency? Fungus? I've adjusted the PH to 5.7 temporarily

UnrealTairo

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Leaves. Color - Black or grey

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Nicblackkanswered grow question 5y ago

Parecen estar bien

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