Green Pocillopora Bird's Nest?

[Saltwater reef]

Just ordered two if these out of what they look like and because of its something different, anyone actually own any of these? Would like some advice??

 

[Jacobsal91]

I dont own one but keep them on the lower half of the tank and move up if needed. They will feed on pytoplankton from time to time but isnt totally
Nessasary all the time but will help keep them super healthy