QUOTE(PurpleUP @ Dec 7 2007, 07:20 PM)

Some random top-down shots I took just now.

Oh, man, I can get lost in that pic! It is just hypnotic!
So cool that you were able to ditch the maxi-jet & skimmer--your tank looks SO mimalist, now--I can't believe how much of the back is visible.
QUOTE(PurpleUP @ Dec 7 2007, 04:48 PM)

Who can tell me what this is called?
QUOTE(SPS20 @ Dec 7 2007, 07:39 PM)

The coral you asked for the ID of is Anthelia. It looks alot like my blue Anthelia, really. (look at my avatar. its a pic of my blue Anthelia) I think it might be the same stuff. If you have the Delbeek and Sprung book, take a look in it for pics of some outrageous color morphs of Anthelia. (volume 1, I think.)
- Josh
Vol. 2, actually.

Which brings up another topic...how do we distinguish amongst all the snow-flake like polyps? For instance, the pics you're thinking of are actually listed as
Clavularia, if you're thinking of the pics on pp 170-171. As the text mentions, in Germany "the common name for this coral is
Anthelia," and it seems like in some other places too...But in Sprung & Delbeek II they're even in different families,
Clavularia in the Clavulariidae, and
Anthelia in the Xeniidae. (And under
Anthelia they list other similar-looking genera such as
Cespitularia,
Xenia, and
Stereosoma...)
Well, here's one distinction, from Sprung's Corals: A Quick Reference Guide. Under
Clavularia, he states:
"
Anthelia spp have similar polyps, and the two genera are often confused.
Anthelia deflates only and cannot retract its polyps the way
Clavularia does. When
Clavularia is closed one sees the round heads of each closed calyx." (p 146)
FWIW,
--Diane