Does Your Pom Pom Xenia...

[Makaiveli]

lay down at night?

It just look wrong to see the pumping xenia looking like a fallen tree. It slowly rises when the lights come on.

 

[OrionGirl]

Not really lay down, they more sort of scrunch up--the only time I see them laying over is if the pumps are turned off, and there's no water movement--then it's a collapse. The silver ones will intentionally bend to make contact with nearby rocks, so they can split or kick out babies.