What is this?

[zeeter]

I suppose it's some sort of leather coral, but what's it named?

 

[fsn77]

It looks like a toadstool leather (Sacrophyton sp.).

 

[zeeter]

Hmm...that's what I thought, too, but it's sitting next to another toadstool leather that looks nothing like it.

 

[fsn77]

Toadstool leathers can vary quite a bit in flesh color, polyp color, and polyp / tentacle length. Do you have a pic of the one next to it?

 

[zeeter]

The stupid PJ is in front of the one in question, but the toadstool is right next to it.

 

[fsn77]

Yep, they're both toadstool leathers, just different varieties. As the smaller one grows larger, it'll start to get more of a ruffled edge like the larger one has.

Just a word of advice... You may want to think about relocating the frogspawn. The sting from the frogspawn can do a lot of damage to the toadstool leather, and it won't be long before one or both of them grow enough to be within range.

 

[zeeter]

Thanks for the ID, and good advice on moving them. I have moved the frogspawn to the other side of the aquarium and moved the rock that the smaller toadstool is attached to, as well.

BTW: The smaller toadstool was just a hitchhiker on a piece of live rock so I guess I got a bonus there!