What is this white stuff???

[Dansbak]

This stuff just appeared in our tank. We have no idea what it is. Can anyone help us to identify it?

 

[airdog67]

is it soft or hard?

 

[Sculp1n]

Looks like a sponge to me.

Sculpin

 

[sixspeed]

sponge

 

[MarkusII]

Hello,

yes sponge,

looks to me like: Carteriospongia vermifera

regards

Markus

 

[crvz]

looks like sponge to me as well. mostly harmless, I wouldnt be concerned.

 

[Dansbak]

Thanks for the feedback. We were just curious. We had never seen anything like it in our tank before.

 

[redfishsc]

Sponge.

And cool formica by the way. I put some of that exact same color in a couple of kitchens recently.