Cespitularia or Efflatounaria??

[silverwolf72]

Are there different requirements depending on what it is?
How do you tell the difference between the two species?


http://www.socalireefs.com/forums/imagehosting/16248dd37515dc4d.jpg

[Hormigaquatica]

Xeniids are really difficult to ID, even down to genus level unless youve got a powerful microscope handy. You can use growth pattern as a loose guide, as well as factors like pinnule size, pusatile or non-pulsatile, etc.

Yours looks more like an Efflo or Cespitularia than it does a Xenia IMHO. Nice piece regardless of what it really is.

[silverwolf72]

Thanks I've had it a week and it has dropped that one foot and attached to the rock in front and also the one on the side. Differently seems to be a fast grower so far