The Zebra Danio Danio rerio (previously Brachydanio rerio) is a lively little schooling fish that only reaches about 2 1/4 inches (6 cm) in the aquarium. This is one of the first types of tropical fish to ever be kept in the aquarium, and it is still enormously popular. Its very pretty, inexpensive, and a great for both beginners and advanced aquarists. Other common names it is known by are Zebrafish, Striped Danio, and Zebra Fish.

These hardy and attractive Cyprinids are ideal for beginners. They are prolific breeders and are the easiest type of egg layers to breed. As a schooling fish they should be kept in a small group of at least three individuals, though a schools of 5 or more is best. And being small, a school is suited to a smaller aquarium with 20 gallons being optimal. They can be housed with most any community fish, just make sure that the danio will not be eaten and that the other fish aren

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