I just noticed that my neps are starting to get a lot of mineral deposit on their leaves. I have been using a ultrasonic humidifier to increase humidity and lower temps. However, since I do not have a RO system in my apt and I can only get limited RO water (for now), I use regular tap water for the humidifier. I know it has a lot of mineral content. But yesterday...I noticed that a lot of my plants got a mineral deposit on the leaves.
If i don't wipe it off the leaves do u think it will harm the nep?