Black Clown Goby

The Black Clown Goby is a tiny, charming species that has become a favorite among nano reef enthusiasts. With its entirely jet-black coloration, round body shape, and oversized head, this diminutive goby has an endearing appearance that belies its hardy nature. Adults reach a maximum size of only 1.5 inches, making it one of the smallest marine fish commonly available in the aquarium trade. In the wild, it is found living among the branches of Acropora and other branching corals.

This species is an ideal choice for nano reef aquariums, requiring as little as 10 gallons of tank space. Despite its tiny size, the Black Clown Goby has a bold personality and will readily perch on coral branches, rocks, and even the aquarium glass, often in full view of the observer. It is a remarkably easy species to care for, accepting a variety of prepared and frozen foods with little hesitation.

One consideration is that Black Clown Gobies may occasionally nip at the polyps of SPS corals, particularly Acropora species, where they like to lay their eggs. However, the damage is typically minimal and only of concern in heavily stocked SPS-dominant systems. They produce a toxic mucus coating that deters predators, so avoid housing them with species that might try to eat them, as this could harm the predator. Overall, the Black Clown Goby is an excellent beginner species that adds character and interest to any small reef aquarium.