What is this?

[Rod]

Can anyone identify this? It is growing on the glass.

 

[Rory]

Um, I think you're going to have to save that file to your pc then upload it to imageshack/reefclips/photobucket Rod. Or you can mail it to me...

 

[Rod]

Um, I think you're going to have to save that file to your pc then upload it to imageshack/reefclips/photobucket Rod. Or you can mail it to me...

Ok, I can see it because its on my computer? It was actually sent to me in an email.
Right Photobucket here I come.
Stand by one!

 

[Rod]

These were sent me by Wendy. Can anyone identify it please?

 

[Midasblenny]

Eina, looks like flat worms to me, destroy via a six-line wrasse or there are a few other wrasses which eat this critter but not sure which.

 

[Rod]

Eina, looks like flat worms to me, destroy via a six-line wrasse or there are a few other wrasses which eat this critter but not sure which.

No Midas I dont think so. This is a big boy! I have had my invasion of planeria/flatworms so I will say no.
Compare with the mushroom near him.

 

[KevinW]

That looks like a trematode (fluke). Could be parasitic.

 

[jacquesb]

Hi Rod - does this thing move at all? If not, It can be some type of sponge or turnicate. I have similar things growing in my tank, but they are DEFINITELY not mobile, and I could not see anything negative effect of having them in my tank. They do like the "darker" areas of my tank though.....

 

[Mekaeel]

looks like a nudibranche