Finally decided to ask.

[lcstorc]

This coral has been slowly growing in my tank for years. It just kind of appeared and has slowly grown enough to see some detail and I am curious to find out what it is.
As far as I can tell, it harms nothing, but is just one of those things.
It is still not very large. For size reference the green behind is my lovely (lol) grape calurpa.

 

[Reefmack]

Almost looks like a Pocillopora, but that's only a guess.

 

[theskunk]

it does look kinda like a pocilliopora

 

[ACRONUTS]

Does it look like it has a hard skeleton? If not it looks also like a finger leather as well.

 

[DrHank]

Lynn it looks like a Lobophyton species to me. Probably one that isn't commonly collected. Some of them do grow at very slow rates. If the polyps retract and it has a rubbery texture I'd be willing to put money on it. It has the appearance similar to a young Fiji yellow leather but not the coloration.

 

[Reefmack]

It does indeed look like it could also be a type of leather.

 

[Woodstock]

Whatever it is, it is pretty

 

[Frankie]

Lynn it looks like a Lobophyton species to me. Probably one that isn't commonly collected. Some of them do grow at very slow rates. If the polyps retract and it has a rubbery texture I'd be willing to put money on it. It has the appearance similar to a young Fiji yellow leather but not the coloration.

I agree. some type of Lobophytum sp.

 

[lcstorc]

Hmm, it is definitely rubbery in texture and does not appear to have a hard skeleton. I thought of my finger leather at one point but it grows so slowly I dismissed that. My other leathers take off an grow like crazy. It is very close to a Kenya Tree and another leather that I forget the name of, so maybe there is some chemical warfare going on. It's always been too small to frag, but it is a bit bigger and now that I have the frag tank set-up I may just give it a try.
I'm with Doni on this one. Whatever it is, it is a pretty little thing.