Pearly jawfish, Opistognathus aurifrons, is a very interesting fish from the Caribbean. The difference between the Pearly and the Yellowhead Jawfish is that the Pearly Jawfish are imported from Haiti and don’t have as bright yellow head as the Florida ones. They are found primarily in sandy bottoms where they live in deep holes that they dig in the sand, so you’ll need to have a couple inches of sand in your tank to accommodate them. If you have a lot of rock in your tank that is not epoxied together, beware that they may excavate the sand from under the rocks possibly causing them to settle and move about.
Pearly jawfish and their Florida counterpart, the yellowhead jawfish, are hardy fish that will add color and diversity to your tank. They will do best on pellet food, but will eat other types of prepared commercial foods, as well as fresh or frozen chopped shrimp, clams, and squid. Many aquarists who keep more than one have had them spawn in their aquariums, and some have even had success rearing the babies. They are mouth brooders, so if you have several and one day notice that one of them (the male) has a ball of eggs in its mouth, then they have started spawning.
These fish are about 3″ long and grow to a maximum of about 4″ long. Be sure to keep your aquarium covered at all times, especially at night because they do tend to jump when startled.