Common name: Blackfin Dwarfgoby

General information

The Blackfin Dwarfgoby, scientifically known as Eviota nigripinna, is a diminutive and captivating species of goby that is cherished by nano-reef enthusiasts. This species is part of the diverse and colorful Gobiidae family, which is well-represented in the marine aquarium hobby. The Blackfin Dwarfgoby is distinguished by its small size, typically not exceeding 2 centimeters in length, and its striking coloration, which includes a dark dorsal fin contrasted against a lighter body.

Care

Due to their minuscule size, Blackfin Dwarfgobies are well-suited for nano or pico reef aquariums. They thrive in well-established systems with plenty of live rock and coral for hiding and foraging. These gobies are peaceful and can be kept with other non-aggressive tank mates. They are carnivorous, feeding on small zooplankton in the water column, and will benefit from a varied diet of finely chopped meaty foods and quality marine flake or pellet food.

Reproduction

Eviota species, including the Blackfin Dwarfgoby, are known for their short lifespans and rapid reproductive cycles. They are protogynous hermaphrodites, meaning they have the ability to change sex from female to male. In the aquarium, breeding can occur if a stable pair is established, with the female laying eggs in a secure location, which the male then fertilizes and guards.

Habitat

Blackfin Dwarfgobies are found in the Western Pacific, from the Philippines to northern Australia. They inhabit coral reefs and rubble slopes, often at depths ranging from 1 to 30 meters. Their natural environment is characterized by abundant coral growth and a rich supply of microfauna, which provides both food and shelter.