Could I get an ID on this shiny green shell like ball

[konatown]

This has been growing. It hasn’t moved. I’ve noticed it for a few weeks. It’s hard like a shell, I tried to grab it with tweezers.

Thanks!

 

[JGT]

Looks like bubble algae with some coralline growing on top of it.

 

[Troylee]

Bubble algae

 

[konatown]

Have you ever had bubble algae hard as a rock? I have not seen coralline grow on bubble algae before

Looks like bubble algae with some coralline growing on top of it.

Bubble algae

 

[Troylee]

Have you ever had bubble algae hard as a rock? I have not seen coralline grow on bubble algae before

I’ve had it hard as a rock but never saw corraline grow on it lol..

 

[Troylee]

Try not to pop it in the tank.. I’d remove the rock and try to. Pry it off with a screwdriver or something and give the rock a good bath in some tank water and then put it back in the tank.. if it pops it might spread!

 

[konatown]

Try not to pop it in the tank.. I’d remove the rock and try to. Pry it off with a screwdriver or something and give the rock a good bath in some tank water and then put it back in the tank.. if it pops it might spread!

Ive had a little bit of bubble algae before and I see one little one and they do look a little different side by side but I’ll try to get it out and see. Yeah I’ve never seen coralline grow on bubble algae either lol

 

[SteveMM62Reef]

I’ve had Coraline Algae grow on Large Bubble Algae. Carefully get under it a pick it off. Preferably do this outside the Tank. I’d put a little Super Glue over where it is attached, to smother the stem. Watch for it popping up in other parts of the tank. Emerald Crabs can eat small grow out buds, but found they can’t touch the Bubbles, once they get to even a moderate size!

 

[Jared Bryant]

Pop it they don't spread by popping.

 

[WheatToast]

I have not seen coralline grow on bubble algae before

And my centerpiece bubble algae.

 

[kevgib67]

Gorgeous! If you ever frag that bubble algae hit me up!

 

[Dburr1014]

https://reefkeeping.com/issues/2002-02/hcj/feature/index.php

 

[konatown]

Gorgeous! If you ever frag that bubble algae hit me up!

Well I’ve had lots of bubble algae but never seen one get this hard before but you’re welcome to have whatever it is.

 

[bulldogniner]

Are you sure it isn’t a marble that fell in your tank??