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simple fix. get you a magnetic glass cleaner, and simply keep up on it. happens to everyone
simple fix. get you a magnetic glass cleaner, and simply keep up on it. happens to everyone
i have preference tward fluval products. due to the fact the magnets seem to be stronger then most. but also try and kee it away from the sand or you can scratch the inside of the aquarium
I hope it works!I'm going to go out on a limb and say it looks like both film algae and coraline. Both good indicators of a maturing tank. I agree with @fnlyreefready that you'll want to keep up with it. Both get harder to clean off the longer they are allowed to grow on the glass. I personally use the flipper.

I will try it too if with the Flipper magnetic cleaner doesn't work, I love taking pictures of my tank and that appears in my pictures. Thanks!It’s the beginnings of coralline algae. Pro tip: use an old credit card to scrape it off. Don’t use a metal-bladed scraper or magnet. They can still scratch glass. I know from experience.

