Common name: Shortsnout triplefin

General information

The Blunt-snouted Triplefin, scientifically known as Helcogramma obtusirostris, is a small and fascinating fish species belonging to the family Tripterygiidae. These fish are known for their ability to rapidly change color, which they use as a form of communication and during courtship displays. They are not as common in the aquarium trade as some other marine species, but they can make a unique addition to a nano or small reef aquarium due to their diminutive size and interesting behaviors.

Care

Helcogramma obtusirostris requires a well-established aquarium with plenty of live rock and hiding places to feel secure. They are best kept in small groups or pairs in a species-specific tank or a peaceful community tank with other non-aggressive fish. Due to their small size, they can be outcompeted for food, so careful attention should be paid to ensure they are receiving adequate nutrition. A varied diet of small live or frozen foods like brine shrimp, copepods, and mysis shrimp is ideal.

Reproduction

In the wild, Blunt-snouted Triplefins are known to lay eggs on the substrate or on the underside of rocks. The males guard the eggs until they hatch. In an aquarium setting, breeding these fish can be challenging due to their specific requirements for spawning and the care of the eggs.

Habitat

Helcogramma obtusirostris is found in the Indo-Pacific region, from the eastern coast of Africa to the western Pacific Ocean. They inhabit shallow reef flats and lagoons, often seen darting among coral rubble and algae-covered rocks. They are adept at maneuvering in and out of tight spaces, which makes their naturalistic representation in an aquarium setting both important and visually appealing.