Help! Growth on coral with spikes?

[ReefMeUpScotty]

My initial thought was a purple sponge as it had a cylindrical tube sticking out for moving water maybe. Then today it seems to have grown a little and has a bunch of long spikes sticking out of it. It’s been growing on the side of a toadstool I glued down in low to moderate flow and in the shade. This was my first piece of coral so I’m guessing it hitchhiked from my LFS tank.

I noticed it about two months ago or less and it’s grown to about the size of a quarter and seems to want to wrap around. Is this just a purple sponge or does it look like something else?

Thanks!

 

[cloak]

Some sort of sponge would be my guess as well.

 

[KJ]

Sponge.

 

[ReefMeUpScotty]

Thanks for your answers, so that’s confirmed. Only thing that made me second guess it today was those spikes coming out of it I’d never seen!

 

[reef lover]

Yup a sponge and that piece looks like a hammer coral.

 

[ReefMeUpScotty]

Yup a sponge and that piece looks like a hammer coral.

It looks like a hammer/frogspawn hybrid they sold me as a hammer. The polyps are a mix of round mostly and some hammer shapes. Here’s a better pic

 

[reef lover]

It looks like a hammer/frogspawn hybrid they sold me as a hammer. The polyps are a mix of round mostly and some hammer shapes. Here’s a better pic

For some reason I thought you said it was a toadatool...lol

 

[Gahngoo]

+ 1....Sponge.

No problems with it.

 

[ReefMeUpScotty]

For some reason I thought you said it was a toadatool...lol

Whoops I did lol I always mix up toadstools and frogspawns when it comes out my mouth. Or keyboard..

 

[ReefMeUpScotty]

+ 1....Sponge.

No problems with it.

Thank you, wasn’t sure if it would harm the coral as it grows

 

[Maggie321]

Whoops I did lol I always mix up toadstools and frogspawns when it comes out my mouth. Or keyboard..

I mix up mushrooms and toadstool and frogspawns... don't feel too bad about it though. Nbd! Lol