Found one at a LFS' autumn sale.
Got 'im through quarantine in one piece.
Watched him bypass whole brine shrimp to delicately sip in the tiny busted swimmeret from a mysis' tail, and worried that he'd never be able to compete in the more boisterous environment of my display.
Saw white poop, treated with Quick Cure and Focus for internal parasites.
Today ... today, he spends most of his day banging away at the liverock, keeping those parts of it that he feels are accessible completely free of algae. He loves nori on a clip, and clams on the half-shell, but not tridacnid clams on the liverock. He studiously avoids any corals - and any GHA! And when the food hits the intake of the return pump and blasts out into the tank at 2,500 gph, he's right there - effortlessly riding that current, watching both returns, ready to dart and grab, willing to take down the gnarliest gobs of krill-tail, whole.
His color, pale upon arrival, has intensified almost daily - his greens are sometimes not too obvious, but his pastel shades are unique in my tank, and it can be fascinating to watch the entire pink part of his body suddenly change to a near-pearly pallor, with all fins raised in elegant display.
I'm thinkin' this guy's going to be OK.
~Bruce