Pajama Cardinalfish (Sphaeramia nematoptera)

From the Western Pacific, the Pajama Cardinalfish (Sphaeremia nematoptera) is a popular choice for peaceful aquariums. They are also known as the Spotted Cardinalfish, Coral Cardinalfish, or Polkadot Cardinalfish. Best kept in small schools, these brightly colored, carnivorous fish are a great option for a community saltwater tank.