Anemone or shroom?

[NanoLove]

Yaaaaayyy it’s big enough to get a sort of ok picture of finally lol.
So the little dude to the left of the green zoas closes at night, is a deeper red than appears and has green in the middle. Is this a shroom or a nem? Twas a hitchhiker. Sorry not the most amazing pics, but if you have a guess I’m all ears

 

[blaxsun]

Leaning towards mushroom.