I dunno but I cut a xenia frag, left a very small amount of the base there, sorta like a tree stump, and within a couple days I could see little xenia growing and pulsing on it.
I've seen somebody do it here before. So I'm assuming it's ok.
I have a credit for a yellow pygmy angel, they run 22.99.
I'll let it go for $10 plus paypal fees.
I bought a flame angel since then and have no use for the credit.
heriberto.sanchez@gmail.com
I've had one of mine for about a year and just swims around all day, never in the rockwork though. Never settled anywhere. Sleeps next to the powerhead also.