Red hollow thing with hole and "eyelashes"

[tranceFusion]

The red blob seems to be hollow. It has a hole with hair around it that look like eyelashes. It closes up if a crab or snail crawls over it.

 

[xxkenny90xx]

Some kind of tube worm, feather duster. Or maybe a barnacle?

 

[xxkenny90xx]

Either way it should be a harmless filter feeder. Can you post a video of it in action?

 

[JGT]

The red blob seems to be hollow. It has a hole with hair around it that look like eyelashes. It closes up if a crab or snail crawls over it.

Barnacle, good guy .

 

[KrisReef]

No doubt, that is an RMT= Red Mystery Thingy? How long have you had it?

 

[Tankkeepers]

Look alot like a mini anemone of some type similar to the ones a decorator crab may have with it

 

[vetteguy53081]

A barnacle is a very weird crustacean that lives in a shell and sticks out a filter-feeding appendage at times and are harmless filter feeders. Do note that most barnacles in captivity will die due to not being able to feed enough.

 

[tranceFusion]

I do not think it is a barnacle. It doesn’t have a hard shell and I’ve never seen anything inside the hole. It came on my Florida live rock that I’ve had for about 4-5 months. It’s hard to get a good picture of it because it lives in the dark under a ledge. I was able to get a pic when I moved the rock temporarily. It seemed to grow for a while but lately I think it is injured because a spaghetti work and in the rock above keeps spitting junk onto it which attracts my crabs to crawl on top of it and pick at it.

 

[zert11797]

Flatworm, maybe?

 

[Tankkeepers]

I still say it's a mini anemone I used to have one that look almost identical to that

 

[burningmime]

Could it be a tunicate?