They are great fish, need minimum of 30g tank as they do alot of swimming and like to explore. Mine seems to nip at snails but he never messes with and of my LPS
but goes after SPS
and some of my snails. They leave shrimp, hermit crabs, and some fast snails alone but will attack slow moveing snails and my emerald crabs.
They will eat frozen brine and squid, mostly any meaty foods given. Krill is a big hit too. Make sure to add some snails and supermarket clams for them to pick on as their beaks will get over grown and prevent them to eat.
Tank mates can be anything really non aggresive, they are not very aggresive as i stated but are very curious. They have great personalities and will watch you from inside the tank even from a few feet away! (4-5)