HELP - Unknown thing seems to be growing inside my GSP?

[Zyrakito]

Hi all!

New to this forum and reefing hobby - within the last 7 months.

Can anyone help ID what this green fin-looking thing is sticking out of my GSP? Should I be worried and take action?

Thank you so much!

 

[kukawskim80]

Hi all!

New to this forum and reefing hobby - within the last 7 months.

Can anyone help ID what this green fin-looking thing is sticking out of my GSP? Should I be worried and take action?

Thank you so much!

Hard to tell from picture. Is it like a bubble? Could be bubble algae

 

[Idech]

Is it round or flat ? It’s hard to see with this picture.

 

[Zyrakito]

Is it round or flat ? It’s hard to see with this picture.

It's flat.

 

[bushdoc]

Could be "Mermaid Brush" or some other macro algae. Not an issue,unlikely it would take over the tank.

 

[i cant think]

Could be "Mermaid Brush" or some other macro algae. Not an issue,unlikely it would take over the tank.

This. I wouldn’t say it’s a bad algae (As others have hinted to) however it does seem to be a Mermaid’s Bush Macroalgae.

 

[exnisstech]

Pluck it off with some tongs or tweezers?