Whats on my new blasto??

[Strangewaterchange]

Currently drip acclimating my new coral order and noticed this on the base of my blasto. Thought it was aiptasia but not sure with the way it retreats back inside (see video). Any help is much appreciated.

 

[yuzu]

Aiptaisia seems to move like that too in my experience. While it's hidden, superglueing over it should trap and kill it.

 

[SeZMehK]

Looks like an aiptasia to me based on the picture.

 

[vetteguy53081]

There is aptasia on the lower part of the steen but right under the head I see poriferan sponge

 

[Strangewaterchange]

Thanks everyone I didn't know it could move like that, I went ahead and superglued over the opening