Cardinalfish belong to the Apogonidae family. The genera of available fish in this group include Apogon, Sphaeramia, and Pterapogon. The average size of most Cardinalfish in an aquarium is two inches. In the wild, the largest member of this family of fish reaches an adult size of six inches in length. Cardinalfish are closely related to Bigeyes, and are recognized by their two distinctive dorsal (top) fins. The majority of the species within this family are red, hence the name Cardinalfish. These fish are prominently associated with coral reefs, and are found throughout the world. Most Cardinalfish are found in groups in the wild, actively feeding on small fish and crustaceans.
These fish make great additions to a peaceful aquarium, adapting well to life in an aquarium. Extensive rockwork and coral decorations should be provided to enable the fish to retreat from other tank mates. No significant or distinctive characteristics differentiate males from females. Cardinalfish are mouth-breeding fishes, similar to some of the freshwater African Cichlids. The male Cardinalfish will incubate the fertilized eggs in its mouth, protecting the precious eggs from hungry predators. These fish can be bred successfully in an aquarium, and the fry can be raised to adulthood with appropriate care.
They are generally compatible with: Dwarf Angelfish, Blennies, Boxfish, Butterflyfish, Cardinalfish, Clownfish, Filefish, Gobies, Grunts & Sweetlips, Hawkfish and Puffers.
Caution is required with: Large Angelfish, Anthias, Basslets, Batfish, Damselfish, Goatfish, Hogfish, Parrotfish, Pseudochromis, Squirrelfish, Tangs & Surgeons and Wrasse.
They are not compatible with: Anglers & Frogfish, Eels, Groupers, Lionfish & Scorpionfish, Seahorses & Pipefish, Sharks & Rays and Triggerfish.
