Weird growth on Ricordea

[Reefer Joshua]

Can anyone help me identify what’s growing under my Florida ricordea??

 

[Gtinnel]

I believe it's a sponge.

 

[Reefer Joshua]

I believe it's a sponge.

Do you know if I should be worried? Is it harmful?

 

[Gtinnel]

Sponges are generally harmless but if you don't like it being under the coral then scraping it off shouldn't be an issue.

 

[Reefer Joshua]

Sponges are generally harmless but if you don't like it being under the coral then scraping it off shouldn't be an issue.

Ok thanks!! I appreciate your help on the ID!