Amazing Photo of urchin!

[Auston]

My urchin grabbed this xenia off the rock and are now best friends.

[Ron Reefman]

That's cool. We were snorkeling in the Florida Keys and I found a small crab (maybe 2" to 3" across the carapace) and it's back was covered with dozens of small green zoas. We wondered who's idea that was, the crab's or the zoa's?

[Auston]

Nice!