The Engineer goby is in a separate family from the gobies and blennies. Its markings change throughout its life. Consistently, the colours involved are dark blue to black on white. As a juvenile, the markings are horizontal, running the length of the body. With age, they become vertical bands.
They should be kept in an aquarium with a sand covered bottom where they will may make burrows. They need peaceful tank mates and plenty of hiding places. Small groups or pairs tend to do better in an aquarium, but need to be introduced simultaneously to the tank. The Engineer Goby has been known to spawn successfully in an aquarium setting.
Its diet should consist of a variety of fresh or frozen seafood, brine shrimp, and mysis shrimp.