What is this?!

[Dcolognesi]

And this cluster??

Tank is pretty new and when I got these chunks of LR, these things were very white and hard and now they seem to be coming alive .

 

[Mike J.]

The first picture is of a Favia. The second one I can't make a clear distinction; could be several things. How many tentacles does it have?

 

[Dcolognesi]

I can't make out the amount of tentacles but they're certainly there.. The tentacles have white tips.

 

[kateater]

I hear they are cup coral I've got the same things in my tank. Best I can tell from photo.

 

[Dcolognesi]

Pretty cool actually .. I didn't think they would come to life like this. I actually figured those and the other coral we're dead

 

[kateater]

Pretty cool actually .. I didn't think they would come to life like this. I actually figured those and the other coral we're dead

So do they resemble the pic I posted?

 

[Dcolognesi]

They do! Only very tiny right now

 

[Duffam3434]

i've only seen these grow in coral skeletons.. I cant tell by your pic kateater is that in a skeleton?

 

[kateater]

i've only seen these grow in coral skeletons.. I cant tell by your pic kateater is that in a skeleton?

yes they have a calcium based skeleton.