Twinspot Cardinalfish

Taeniamia biguttata

The Twinspot Cardinalfish is a reef-associated species found in the tropical waters of the Western Pacific, ranging from Sumatra to Tonga and Vanuatu, northward to the Ryukyu Islands and south to Australia, including regions like Palau and the Mariana Islands in Micronesia. These fish typically inhabit inshore reefs of bays or lagoons, often hovering in small groups within the recesses of caves. They are known for their distinctive body shape, which is short and deep, and their compressed cross-section. The Twinspot Cardinalfish can grow up to 11 cm in length and is characterized by its dorsal spines and rays, with 7 dorsal spines and 9 dorsal soft rays, as well as 2 anal spines and 14 to 19 anal soft rays. Divers are likely to encounter these fish at depths ranging from 0 to 33 meters, although they are usually found between 0 and 15 meters. The Twinspot Cardinalfish is a mouthbrooder, exhibiting distinct pairing during courtship and spawning. This species is harmless to humans and has been assessed as Least Concern by the IUCN Red List. When diving, encountering the Twinspot Cardinalfish can be a serene experience as they hover quietly in the shadows of their reef habitats. Their presence in small groups and their preference for cave-like environments make them an interesting sight for divers exploring these underwater structures.