Orbic (Pajama) Cardinalfish (Sphaeramia nematoptera)

The Orbic, or Pajama Cardinalfish, is a peaceful and visually striking species, instantly recognizable by its silvery body, bold black mid-body band, and bright red tail. Known for its calm and social demeanor, it thrives in groups and adds movement and harmony to community and reef aquariums. Its gentle nature makes it ideal for beginner to experienced hobbyists alike.

Size: Typically grows up to 3 inches in length

Country of Origin: Indo-Pacific region, including Indonesia, the Philippines, and Papua New Guinea

Latin Name: Sphaeramia nematoptera

Care Level: Easy to Moderate – thrives in well-established aquariums with calm water flow, plenty of hiding spots, and stable water conditions

Orbic Cardinalfish are carnivores that feed on small meaty foods, such as brine shrimp, mysis shrimp, and finely chopped seafood. They are reef safe, posing no threat to corals or invertebrates, and are best kept in small groups to encourage natural schooling behavior.