Strange object

Wug · Apr 29, 2021

Hi folks,
Does anybody recognise this ?
Last week I received a new coral and noticed this lump on the side, today I noticed 2 antenna like appendages come out and then back in on what looks a bit like a mouth.
Any feed back would be appreciated

prdubois · Apr 29, 2021

1950s movie "The blob"

Wug · May 1, 2021

I think it may be a sponge, any thoughts ?

attiland · May 1, 2021

Wug said:
I think it may be a sponge, any thoughts ?

It is. Don’t ask what kind I am no expert in I’d them. You may want to get it out from the Zoas as it can grow too fast for them overtaking the space.