Dusky Jawfish are one of my favorite fish in this group! They require plenty of substrate due to how they will construct a burrow for their homes. All Jawfish prefer to keep an eye on everything that's going on and will often build multiple burrows throughout the aquarium. They will typically spit gravel at any fish that comes too close to the burrow and even at the hobbyist who tries to get a closer look! They are considered reef safe.