Curious, xenia and nutrient export.
 

I don't know what Xenia absorb to grow specifically, but mine grows faster than my chaeto did.
Aside from wasting "coral" am i throwing anything else out when I toss these out?
Since they grow so fast I assume they're a bit of a nutrient sponge?

I only throw ugly sliced up arms away. the small ones I turn into frags.