Cardinalfish Facts, Size, Breeding, Lifespan, Tank Care

Cardinalfishes are members of the Apogonidae family of ray-finned fishes that can be found in the Atlantic, Indian, and Pacific oceans. They are primarily found in saltwater, but some species (such as Glossamia) can also be found in freshwater.

A few species are kept in aquariums and are appreciated for their modest size, placid nature, and vibrant colors. There are around 370 species in this family. Most species are under 10 cm (4 in) and exhibit striking coloration. Their big mouths, as well as the split of the dorsal fin into two separate fins, distinguish them from other species.

The majority of species may be located in tropical or subtropical environments, where they can be found on coral reefs and lagoons. They are nocturnal, spending the day in the reef's crevices, where they can remain hidden from view.

    Cardinalfish Facts

    They have two dorsal fins, a broad mouth, large eyes, and wide scales. Most of them are red or reddish; some may be silver, brown or black. Cardinal fish are widespread worldwide and have two unique dorsal fins. These nocturnal, slow-moving fish are ideal for big community aquariums. Beginner marine aquarists are generally advised to start with such species.

    Cardinalfish Facts, Size, Breeding, Lifespan, Tank Care

    Cardinalfish Breeding

    The species has several unusual reproductive characteristics. Sexual roles are reversed in many cardinalfish varieties, and males give parental care, brooding and hatching in their jaws.

    Males incubate the eggs in their mouths and release mature, tiny fry around the 20th-day post-spawn. This is a distinctive characteristic of the Banggai cardinalfish. Other cardinalfish just brood the eggs for a few days before releasing the pelagic young.

    Cardinalfish Size

    There are around 370 species in this family. Cardinal fishes range in size from 5 to 20 centimeters (2 to 8 inches).

    Cardinalfish Lifespan

    The life expectancy of the cardinalfish is usually 2.5 to 3 years, with a maximum life expectancy of up to 5 years.

    Keep in a properly sized aquarium with plenty of hiding spots, plants, rocks, and decor. It is essential to the health of aquatic life that water quality and parameters remain stable.

    Cardinalfish Tank Care

    Feed modest quantities 2 to 3 times daily, no more than the fish can consume in 1 to 2 minutes, depending on the species and size. Before giving food to your fish, defrost the food.

    Daily inspections of the filter, water temperature, specific gravity, and other equipment are required. Water quality should be checked at least once a week. If necessary, change 20–30% of the volume of water every 2-4 weeks or as necessary. Gradually introduce additional inhabitants to the aquarium.

    When kept in small groups, some species can be kept peacefully; various species should not be intermingled. Although cardinalfish are nocturnal (active at night), they may adapt to feeding and activity during the day.

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