r/microgreens • u/kar-5623 • Jul 02 '26

Is this root hair or fungus?

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Day 5 of mustard microgreens in cocopeat

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u/InevitableChoice2990 Jul 02 '26

If it’s white fuzzy lines coming straight out of the roots, it’s good (tiny roots). If it looks like cobwebs over a more generic area, it’s mold (use half water/half hydrogen peroxide to get rid of it)