Aptasia or algae?

[daftwazzock]

Not sure what I'm looking at here

 

[Wolf89]

Does it retract if you touch it?

 

[Fishy212]

Looks like algae

 

[ScottR]

No idea what it is. But it’s not aiptaisa.

 

[Simply__J]

Does it retract if you touch it?

That's a great test same way you point a flashlight at it and if retract it's aphasia.

 

[daftwazzock]

Nope doesn't react to light or anything so I guess its just some kind of macroalgae. I got a ton in my sump so probably chaeto or caluerpa. Thanks!