Aiptasia?

[Alexander1312]

I was initially sure that this was Aiptasia, but I wanted to confirm with the experts in this group.

 

[Kensington Reefer]

Don’t think so
Use a tool, touch it
Does it retract
Does it do anything?

Could be tunicate species

 

[Alexander1312]

@Kensington Reefer Seems like I was totally wrong with this. They do not retract, seem like rubber, and bounce back when touched. So no Aiptasia, yes? They are on different parts of my rocks. How do I get rid of them, or should they stay?

 

[JVU]

Does not look like Aiptasia to me. Maybe sponge or tunicate?

 

[PjFish]

They look like harmless filter feeder tunicates. I've had several colonies over the years in which have never bothered anything. However some did and do multiply in my skimmer in the dark zone which takes extra scrubs to clean. Some people consider them a sign of a healthy tank along with sponges. Although from experience pineapple sponges can be a pain growing inside plumbing.

 

[Kensington Reefer]

@Alexander1312
Can stay...