Gold fish (Carassius auratus) is famous aquarium fish for decades throughout the world. Many varieties of barbs are suitable for aquariums. A group of aquarium fishes , the anabantids are a novelty to the aquarium with their wonderful colors and features besides having the ability to thrive in oxygen- stressed conditions as they are air-breathers. Angelfish is another major groups for aquarium.

  Livebearers

The species within the livebearers category have always popular among the hobbyists especially with the beginners who are just intend to set a small aquarium. Livebearer means those fishes give birth the young ones directly. There are a number of live bearings ornamental fishes occur in freshwater and salt-water habitats in many parts of the world. The popular ones are Swordtails, Black mollies, Platies and Guppies. Livebearer species have many varieties available in the market.

 

Egg layers

In nature majority of fishes are egg layers the most important group of egg layers comes under the family Cyprinidae, which include Carps, Barbs, Rasboras, Danios, Tetras, Catfishes, etc. Egg layers are those lay eggs in water during the breeding season and after laying eggs the male fish sprays milt over the eggs and eggs get fertilized. Gold fish (Carassius auratus) is the well famous aquarium fish have many varieties like Lion-head, Veil-tail, Fringe- tail, telescope- eye, Calico-gold, peacock- tail, redcap, pearl- scale etc.