ID what's growing off my acan?

[kevinf]

Had this acan for few months now. These green things on it seem to be growing more & more. They look fuzzy.

 

[robert]

neomeris

It's an algae - some like it - but it can become a real pest and is very tough to eliminate if it spreads.
Take care of it now if you don't like it.

 

[ritter6788]

It's also a sign of great water parameters. It only grows under optimal conditions.

 

[kevinf]

Thanks guys! Good to know what it is.

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