Drums/Croakers (Sciaenidae) communicate with each other by making noises in the water, hence the name.
They will normally look for their food in the sand by digging it with their snout.
Drums/Croakers are easily stressed during transportation, even from one aquarium to the other. It can be difficult to get them to eat, and they should therefore not be kept with food competitors or aggressive species, as they will not get a sufficient amount of food.
They normally hide under overhangs or holes during the day and hunt at night.