Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
Tried to blast it and it didn’t come off, would you say to scrape it off ?By this pictures I would say it's Cyano-bacteria, if it is It should go of very easily if you blast water on it. I recommand to shut the powerhead and to take it of as much possible.
Then maybe it’s not cyano ?Yes, you can sure try but all the cyano i had un my life were very weak so it's strange that it didn't come of easily