Genus
Common name: Pajama Cardinalfish
Scientific name: Sphaeramia
Sphaeramia is a genus of small, nocturnal cardinalfish commonly found in the Indo-Pacific region. They are known for their distinctive spotted patterns and peaceful demeanor, making them popular in the reef aquarium hobby. Members of this genus, such as the Pajama Cardinalfish (Sphaeramia nematoptera), are hardy and relatively easy to care for. They are also known for their unique breeding behavior, where males brood eggs in their mouths until they hatch. These fish prefer a well-structured environment with plenty of hiding places.