Alveopora feeding mechanism

[oncorhynchus]

I recently purchased an Alveopora sp. that is looking very healthy (only 1.5 months in my tank). In the last week or so I have noticed several fine threads ~ 5 - 6 in long that appear to originate in the oral disk area of the polyps receiving most light. Each thread has a large number of shorter threads (~ 0.5 in) attached at a right angle along its length. I haven't seen any retraction and don't know if the threads break off or are retreived by the coral at night. I presume this is a feeding mechanism of some type - possibly for bacterial or other tiny particles. Any information on this would be gratefully received.

John

[oncorhynchus]

Just to update the first post - the polyps can actively extend and retract the 'thread'. Noticed this when a centropyge brushed against one. This thread was then re-extended and quickly retracted several times.

Anyone have any coment?

Thanks
John

[EricHugo]

sessile ctenophore. Interesting associated critters with many corals....not harmful at all.

[oncorhynchus]

Thanks Eric, I need to sharpen my powers of observation, couldn't clearly see the origin but assumed it was the Alveopora.

John