Thanks for your reply, Spazz.
Harlequin's face looks agressive, but in fact they are very peacefull fishes, at least mine is.
They are definatelly meat eaters, mine likes frosen shtimp, squid, ... I have a lot of hermits and many different molluscs in my tank, he does not touch them. Towards other fishes he is also very tolerant, never chases anyone, at the same time other fishes does not disturb him. He is one of my favorites fishes, he lives in my tank two years. I like him very much and highly recomend to everyone.
Kind regards,
Lev
Harlequin's face looks agressive, but in fact they are very peacefull fishes, at least mine is.

Kind regards,
Lev