Is this algae on live rocks good?

[Alex d]

Hi I’m semi new to saltwater tanks and was wondering if anyone knew what type of algae this is and if it’s good for the tank. Thanks!

 

[ThatPhillyReefer]

does it look slimy?

 

[ThatPhillyReefer]

It’s called cyanobacteria, or known as Red Slime Alage. It’s common for newer tanks to get it. It is not a good algae but it is very easy to get rid of. Just use a siphon to suck it up and continue on water changes and it will go away over time. If you don’t seek success some companies make a powder that you mix up to get rid of it.