Good or Bad ALGAE!

[millie2010]

I have no idea if this is a good algae or bad, I'm thinking it's bad - it literally showed up over nite; I'm having issues with hair algae as well. thanks in advance

 

[cjd]

Looks like a type of Limu seaweed . Good or bad depends on if that's what you want to grow!

 

[telsonman]

I see what looks like bryopsis on the left of it too.

 

[saltyfilmfolks]

Codium and turf algae.

 

[LbulletM]

I have some in my tank. Quick grower, but doesn't spread throughout the tank. I just remove most of it every once in a while.