Algae on zoa frag

[Tricktastic]

Not sure what this algae is, it doesn't look like GHA but I could be wrong. It's growing in circular shapes that if removed stays intact. It almost seems like a type of seaweed.

Thanks y'all.

 

[The_Paradox]

Looks like popped bubble algae. If it all looks like that and there are no signs of bubble algae then probably Sea Lettuce.

 

[Tricktastic]

Looks like popped bubble algae. If it all looks like that and there are no signs of bubble algae then probably Sea Lettuce.

Thanks, I've been watching it as it grew out and it never had that bubble shape I see in pictures online so I kind of figured it couldn't be bubble algae. Going to look into the sea lettuce and see what rabbit hole that leads me down.