What in the wirld is this?

[Adam1103]

In the last few weeks I've noticed a lot of these white rubbery things growing in my sump. Like I said they are white, rubbery, and when you look at the top of it it is obviously hollow. Any idea what this could be and is it bad?

 

[crister13]

Don't know sorry. Try posing it in the identification section though.

 

[crister13]

Omg thought I was in fowlr. Sorry. Do they move or just stay there? It could be some type of flatworm though. I can't really see sorry again. Lolz.

 

[Reeffanman]

Looks like sum sort of sponge to me

 

[MacDracor]

Could be pineapple sponge.

Could also be some sort of tunicate.

I assume these are stationary objects, not moving around?

 

[Sergie]

I'd go with pineapple sponge. Great filter feeders.

 

[Holygral]

sponges

 

[Adam1103]

Yes they are stationary. Just really weird because there only growing in my sump.

 

[MacDracor]

Well, they could be growing in other places that are not visible, especially if they are NSP. Regardless, tunicates or sponges, they are harmless filter feeders. If you can remove one and get a closer, more detailed picture, someone could probably give a more positive ID.

 

[needmorecowbell]

just to throw an oddball out there, it could be a fungus. i know i had some on one of my rocks, and it was white and rubbery.

 

[Adam1103]

I'll try and pull one out in a few and get a better picture.

 

[Adam1103]

So I got a couple out of my sump and tried to take the best pictures that I could. iPhone isn't the best for close ups...

 

[Sergie]

Pineapple sponge

 

[MacDracor]

Yup. Looks like a pineapple to me. Granted, I've never seen them grow clustered like that, but I'm sure there are several closely related species that all go by that common name.

 

[Adam1103]

Thanks everyone