Can you help ID this

[corymarc]

It looks like a orange snail with a mushroom instead of a shell

 

[corymarc]

Here's another picture

 

[CHEMCHEF]

Nudibranch

 

[corymarc]

It about the size of a quarter. Is it bad?

 

[m'akoyPINOY]

It's a keyhole limpet in the family Fissurellidae. They usually aren't a problem in reef tanks. The soft thing covering the shell is its mantle.

 

[corymarc]

Thank you very much

 

[Spsnut]

Cool looking limpet; some like to nibble on coralline.

 

[corymarc]

Now this limpet is raised up on to it back side and squirting clouds of white up into the water. I have a video of it if anybody would like to see.

And idea what it's doing?

 

[Spsnut]

That Would be sea slug sex.

 

[rookie07]

Now this limpet is raised up on to it back side and squirting clouds of white up into the water. I have a video of it if anybody would like to see.

And idea what it's doing?

Spawning.