How's ventilation? Get some moving air on her so the spores don't multiply. I'm thinking the Cal mag is not absorbable yet. Lil bit of Epsom salt in a spray bottle. Use it for foliar and to Spray off any particilates 'at night' when lights off. Maybe calmag supplement but epsoms cheapest fix. Fan should be on it 247 to deter mold. Air filter is a must in dust is present in air.
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