Well this is a new one!?

[GK3]

Anyone know what this is?

It’s on the glass right by my overflow about two inches below the surface. It’s about the size of a silver dollar maybe little larger. Looks whitish.

 

[DSC reef]

Looks like sponge

 

[vetteguy53081]

It is Sponge +1

 

[GK3]

It is Sponge +1

Looks like sponge

Interesting. A good sponge or a bad sponge? Remove it or leave it? I guess a sponge has to start somehow, but that’s a funny looking sponge.

 

[Lovemyreef2015]

Interesting. A good sponge or a bad sponge? Remove it or leave it? I guess a sponge has to start somehow, but that’s a funny looking sponge.

Good filter feeders

 

[reef lover]

I think its cool looking!

 

[Katrina71]

That's beautiful.

 

[mort]

Interesting. A good sponge or a bad sponge? Remove it or leave it? I guess a sponge has to start somehow, but that’s a funny looking sponge.

It's a good one, at least in my experience. It'll continue to grow in the same fashion with lots of lose looking threads but bulk up a little more.

 

[GThompson]

Looks like it may have came in on a meteor

 

[GK3]

Looks like it may have came in on a meteor

That’s funny because first thing I thought of was the 2017 movie Life. Reminds me exactly of that alien.