Orange/White Crust on Drosera spatulata Soil: Mineral Deposits, Not Fungus

Orange/white crusty dust on D. spatulata soil (south windowsill, tray watering, distilled water, SNW medium, Maine). On soil, not plant. Harmful?

Likely mineral deposits from peat evaporation. Peat always has some minerals; brands vary. Not directly harmful, but indicates mineral presence.

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