Hello everyone! One of my orchids has these black spots on it. Otherwise it is growing healthy and just sprouted a stem a week ago! Roots are also actively growing too. I noticed when I had switched from distilled water to tap water that it got these white spots and ridges in weird shapes. When I looked at it today I saw a lot of black bumps. I'm wondering if it could be a pest of fungus or nothing to worry about. Thank you!