Ornamental fish are typically classified into specific families, particularly those commonly kept in aquariums. Based on the provided reference, most ornamental fishes thrive in freshwater environments and are categorized into eight principal families.
Primary Classification of Ornamental Fish
Most ornamental fish popular in the aquarium trade are freshwater species. Their classification helps hobbyists, researchers, and breeders understand their biological characteristics, needs, and compatibility.
According to the reference, these fishes primarily belong to eight closely related families.
Key Families of Ornamental Fish
The eight families where most ornamental freshwater fish are classified include:
- Anabantidae: Known as Labyrinth fish, they possess a labyrinth organ allowing them to breathe atmospheric oxygen. Examples include Bettas and Gouramis.
- Callichthyidae: Armored catfishes, recognized for their bony plates. Corydoras are a popular example.
- Characidae: Characins, a diverse group including Tetras, Piranhas, and Hatchetfish. Many are known for their schooling behavior.
- Cichlidae: Cichlids, a large and diverse family known for complex behaviors. Includes Angelfish, Discus, and many African Cichlids.
- Cobitidae: Loaches, typically elongated bottom-dwellers. Kuhli Loaches are a common type.
- Cyprinodontidae: Killifish, often found in specific habitats like temporary pools. Many are vibrantly colored.
- Cyprinidae: Minnows or Carps, a massive family encompassing Goldfish, Koi, Barbs, Danios, and Rasboras.
- Poeciliidae: Livebearers, famous for giving birth to live young rather than laying eggs. Guppies, Mollies, Platies, and Swordtails belong to this family.
These families represent the bulk of freshwater ornamental fish commonly found in aquaria worldwide.
Summary Table of Classified Families
| Family Name | Common Characteristics | Examples (Illustrative) |
|---|---|---|
| Anabantidae | Labyrinth organ for air breathing | Betta, Gourami |
| Callichthyidae | Armored body, bottom-dwellers | Corydoras Catfish |
| Characidae | Diverse shapes, often schooling | Tetra, Hatchetfish |
| Cichlidae | Complex behavior, diverse forms | Angelfish, Discus |
| Cobitidae | Elongated body, bottom-dwellers (Loaches) | Kuhli Loach |
| Cyprinodontidae | Often found in specific habitats (Killifish) | Many vibrant species |
| Cyprinidae | Largest family, diverse range including carps/minnows | Goldfish, Danios, Barbs |
| Poeciliidae | Livebearing fish (give birth to live young) | Guppy, Molly, Platy |
As highlighted in the reference, "Most of the ornamental fishes survive in freshwater. They come under eight closely related families namely, Anabantidae, Callichthyidae, Characidae, Cichlidae, Cobitidae, Cyprinodontidae, Cyprinidae and Poeciliidae."
This classification provides a fundamental framework for understanding the vast array of species available to aquarium enthusiasts.
