In the natural wild, the hawkfish actually spends most of their time lying close at the base bottom, hiding among corals waiting for foods to come by. They especially love small sized fish and shrimps which make ideal meal for this predatory fish. Despite their knack for meaty diet, the fish however is not as aggressive as what you think and they make perfect companions for your other community marine fish like chevron tangs, banggai cardinal and scribbled angelfish. Usually they will get along well minding their own business but however, caution has to be taken if you intend to mix some highly aggressive territorial species like the yellow dwarf angelfish or other larger sized tang fish together with them. Since they have wide mouth with a large appetite for invertebrates like crabs and shrimps, you should consider excluding them along if you intend to set up an invertebrate tank.
So far, there hasn’t been any report underlining successful reproduction of hawkfish species bred in captivity. Most of the fish variety such as longnose, archeye and falco hawkfish which you can see sold in aquarium stores are mostly wild caught fish in deep oceans and they rarely survive artificially-constructed home aquarium environment due to acclimatization and the process of getting adapted to confined space living condition. Although they are generally hardy with high tolerance of treatment chemicals and parasitic resistance, you should never neglect their needs and you must aim towards maintaining the best water quality such as having a protein skimmer, powerhead filter system and also using live rocks as natural biological filters.