Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature currently requires accessing the site using the built-in Safari browser.
I have thought it could be cyano but there is no other cyano in the rest of the tank so it seems weird that it would only be on this coral? I will give your suggestion a try though. Thanks for the input!May be cyano
You can try blowing off with a turkey baster or scrub gently with a soft toothbrush