ID please

[New2Reefing]

ID of this would help alot, thanks....i got them on my florida rock

http://img.photobucket.com/albums/v224/Reefer420/DSCF0394.jpg

Also is this diatoms? thanks

http://img.photobucket.com/albums/v224/Reefer420/DSCF0393.jpg

[greenbean36191]

Cladocora arbuscula

Can't tell about the algae though.

[xian]

Pic 1: Looks like a dead coral skeleton

Pic 2: Looks like cyano (purple stuff), diatoms are light brown.

[New2Reefing]

Sorry they are light brown to dark brown to black..........and there are several of these corals still alive, one's in the picture right above it.

[xian]

Well, maybe not competely dead but dying. Good call greenbean.

http://whelk.aims.gov.au/coralsearch/html/501-600/Species%20pages/567.htm

That polyp near the top looks to be alive.