 With extreme caution taken, they could be kept in reef aquariums, but because of their propensity to eat small ornamental shrimps and other mobile invertebrates (usually leaving sessile invertebrates alone) they are not considered reef safe.Lacking a swim bladder, Hawkfish can often be found resting in crevices of rocks or among the branches of corals or gorgonians.Hawkfish are easy to care for and not picky at all about water quality.