Very possible, the only white spots I’ve had on my leafs that wash off is pm and mineral buildup from my hard well water if I get any on the leaves. Comes out of the tap at 6-700 ppm.
Very possible, the only white spots I’ve had on my leafs that wash off is pm and mineral buildup from my hard well water if I get any on the leaves. Comes out of the tap at 6-700 ppm.