Another Aiptasia is please?

[Steve1500]

It’s only on this rock with the mushroom. It doesn’t have the long thin neck leading to the tentacles like I’ve seen before so is what is confusing me. I can easily take this rock out of tank

 

[Brad Miller]

There are a lot of varieties of Aiptasia.
Some don't have the long stalks.
Some that do are buried in a rock crevice and can't be seen very well.
Yours has good color and stripes, I like it