The Marine Betta, sometimes referred to as the Comet, is found in rocky crevasses, at depths up to 45 meters. It is a hardy and disease-resistant fish. A predator by nature, it assumes a head down position, with its false eye spot near the tail resembling the head of a moray eel.

When first introduced into the aquarium, live saltwater feeder shrimp should be used to entice this fish to eat. Using live foods such as feeder fish or shrimp will help it adjust. Once acclimated, it can be fed meaty foods and frozen preparations 2-4 times weekly.