ID Help

[BMcGaffin]

Hey guys I need help identifying something on my new LR. There is a group of about 7 white stems coming off the rock in a group. Each stem is about 1/8''th in length with about 10 "fingers" for lack of a better term on them. They just sway in the current, very pliable, not hard. When I get close to them with the tongs for feeding the "fingers" close upward they dont retract into the stem like a feather duster or something like that. Sorry there is no pic they are too small and almost clear.

 

Thanks

[Mr. Fosi]

Maybe young xenia or hydriods?

 

Need a pic to be definitive.