kept a pair of Janss' in a softy/LPS reef for years. tankmates included:
foxface
leopard wrasse
lyretail anthias
green mandy
trio of green chromis
Euphyllia (frogspawn, hammer)
bubble
maze
several Tubastrea
asst'd zoos and palys
colt
finger leather
GSP
derasa clam
CUC included asorted snails, scarlet hermits, pep shrimp, micro-brittles, black mithrax
the pipes were semi-cryptic, but would spend time out swimming (usually in the eves), and cleaning its tankmates, and of course eating.
HTH