Need help Identifying Gorgonians

[Newms118]

Hey guys,

So I have 4 gorgonians and I'm not sure if they are photosynthetic or need to be feed. Here are some images.

The first is a purple gorgonian that is stiff and has very tiny white polyps coming out. After it has shed some wax the polyps had a little color to them. The second is a blade gorgonian that has browning polyps, that have picked up a bit of color after its waxing a few days ago. The third is a thin tube gorgonian that has very tiny hairs that make the stalks a bit fuzzy. These all retract at night. The last has big grey polyps coming out.

 

[noy]

Can you post photos with some polyp extension?

Also, can you tell us where these corals were collected?

#1 - looks like a gorgonian sp. (common sea fan) which is fairly broken up. Needs to be fed.

#2 - pterogorgia sp. - maybe a guadalupensis (looks like its got a distinct grove in middle. Common names are purple ribbon, grooved-blade sea whip). Photosynthetic but could benefit from feeding.

#3 - just can't tell - need a closer shot of the polyps - both extended and retracted.

#4 - probably a plexura flexuosa (bent sea rod) if its from the Caribbean. These are photosynthetic.
If its from the western pacific - then it may be a menella which needs to be fed.