White blob?

[WVNed]

What might this be? It looks smooth. It is about the size of a gold ball now. Will it come out and get us while we are sleeping.

It appears to be a smooth white blob. It has been there for months and is now the size of a golf ball. I do not see any holes in it for a siphon.

 

[Oscaror]

What might this be? It looks smooth. It is about the size of a gold ball now. Will it come out and get us while we are sleeping.

It appears to be a smooth white blob. It has been there for months and is now the size of a golf ball. I do not see any holes in it for a siphon.

Sponge

 

[ndrwater]

Most likely sponge. Definitely a good thing

 

[Crabs McJones]

Agree with sponge. Harmless filter feeder

 

[WVNed]

I always thought is was a sponge but don't they usually have holes for water to go in and out? I am only used to seeing small pineapple sponges.

Kinda looks like an evil brain.

 

[ndrwater]

I always thought is was a sponge but don't they usually have holes for water to go in and out? I am only used to seeing small pineapple sponges.

Kinda looks like an evil brain.

Not always. Sometimes the pores are very small...like in this case...

 

[WVNed]

Thank you. You have to look right from the corner of the tank into a hole in the rock, 3 or 4 fish get in the way and I cant get my glasses right to see it clearly.

The flash worked. Wonders never cease.

 

[Hitman]

Ball Sponge, just like said above great filter feeder. Awesome find!!