can anyone ID this?
 

This started growing on my sump return pipe. It was a few mm before I left to go out of town, I thought it was a stray xenia polyp. But two weeks later, this is what it turned into. Definitely not xenia! Looks almost like a kind of lichen or some other kind of fungus you'd expect to find in a rainforest or something ...

Thanks to Canadian_Man for coming over and taking some pictures for me! Man I need a digital camera some day. Keen stuff! :)

As strangely as this thing appeared, it disappeared overnight last night. I imagine it got blown off the sump return pipe and landed somewhere I just haven't found it yet. There is another one forming on my other sump return though.

Any ideas???

http://members.shaw.ca/hobiesailor/temp/DSC00257-1.JPG
http://members.shaw.ca/hobiesailor/temp/DSC00261-1.JPG
http://members.shaw.ca/hobiesailor/temp/DSC00263-1.JPG
http://members.shaw.ca/hobiesailor/temp/DSC00264-1.JPG

I gotta also mention just to clarify that this thing is soft and flows in the current. It in not a stony stiff thing :roll:

Hmmm... interesting, I have a small patch that I've been keeping my eye on and it appears to be the same stuff. Mine is growing slowly on a encrusting Montipora on some Jakarta Rock. On a bonus side note it looks like some Aiptaisia is popping up too :evil: :evil: :evil: .