Sea Fan Help

[Razzagas]

I have had this seafan for over a year. When I bought it the LFS said that it was photosynthetic. The sea fan is starting to lose some tissue, and has not opened its polyps for at least a month. My tank params are good, and I have a 20 gallon fuge, octopus skimmer, 2x250watt MH's and a seio 820 and a seio 620 for water movement. All of my other corals and clams (including some sps) are doing fine. My only guess is that there is not enough water movement since its branches do not really sway in the current.
Any ideas?

<a href="http://photobucket.com/" target="_blank"><img src="http://i62.photobucket.com/albums/h102/Razzagas/seafan.jpg" border="0" alt="Photobucket - Video and Image Hosting"></a>

This is a photo from about 4 months ago when it opened its polyps very infrequently

 

[katpurdy]

i have a red sea fan that if it isn't in direct current develops a coating that suffocates it...have you moved the powerheads or the coral so that it isn't getting the flow that it used to? What do you feed it? I will hold my fan directly in front of the power head to clean off the slime coat if I see it not opening.

 

[Razzagas]

I do not feed it because it is always closed. When It used to open I would feed it cyclopeez. The coral is in the same location as it always has been.

 

[Reef Pinoy]

That gorgonian is probably not happy with the flow. I have the purple variant of your gorgonian and it keeps it's polyps open all the time, even with a pair of longnose hawks perching on it. It is constantly swaying with turbulent flow (created by two sea swirls connected to an ampmaster3000). HTH