Rusty colored "tree" things?

[bdk]

Can anyone help identify these!?
Thanks in advance!

 

[Jaybird]

I think that this is the first picture that really has me completely stumped! When the picture was small I was thinking colonial hydoid (pom-pom hydroids) but when I looked at it larger it is not.

 

[mr_X]

i'm with jaybird. i don't think i've ever seen those before. tagging along to watch them grow out though!

 

[cmor1701d]

There's something new every day in this hobby. I'm hoping one of our members can identify it.

 

[iDream]

the thread title lead me to believe it was aiptasia, but this is far from! that's a strange little thing, i want to know myself!

 

[Kurt_Nelson]

I'm scratching my head with everyone else. At first I thought "stick polyp", but after looking at the bigger picture, it doesn't look right for those.