What is happening to my nem?

[gabrieltackitt]

My anemone is doing this, haven’t seen it do this before. Does anyone know why or what’s happening?

 

[Living Reef Orlando]

How long has it been like this? Sometimes nems will act similarly when pooping.

 

[Hincapiej4]

Surrounded by algae. I'm gonna take a wild guess and say it doesn't like your parameters.