Sharptail Goby (Oligolepis acutipennis)

The Sharptail goby is found in fresh, brackish, and marine waters throughout much of the Indo-Pacific but is rarely seen in the hobby. A medium sized, active fish with attractive markings and elaborate fins, this fish inhabits a wide variety of estuarine and mangrove swamp habitat, but are more often found in fresh or slightly brackish water than full marine conditions. In the aquarium, they adapt to a variety of conditions but if kept in full fresh will do best in moderately hard water. They are peaceful towards most similar-sized tankmates and with each other, although adult males may spar over territory. Our Sharptail Gobies are kept in full freshwater with the addition of a small amount of aquarium salt.