The giant danio is an ideal freshwater fish for beginners. As a long-term aquarist, I've enjoyed taking care of these lively, colorful minnows.
Giant danios originate in the clear streams and rivers of India and Sri Lanka, and they are now bred extensively for the aquarium trade. If you are interested in keeping giant danios, know these facts about giant danio care.
Size
An adult giant danio may exceed 4 - 4.5 inches in length. While this is small compared to many other freshwater fish species, it is nearly twice the size of other danio species.
Feeding
Giant danios require an omnivorous diet. They will eagerly eat flake, frozen or live foods and may graze on algae.
Tank Size
In general, a school of giant danios will do best in an aquarium of 29 gallons or more. They require plenty of open space for swimming.
Social Behavior
Giant danios are a schooling species and belong in schools of 5 or more individuals. Large schools of 10 or more are best, but they require more space.
Temperature
As a tropical species, the giant danio will thrive best in a water temperature between 75 and 80 degrees.
Aquarium pH
Giant danios can tolerate a fairly wide range of water conditions. They can survive at any pH between 6.0 and 8.0.
Sex Differences
Male giant danios are smaller than females, with longer fins and more intense coloration.
Tank Mates
When kept in overly small groups, giant danios may playfully pester other fish in the aquarium. However, they are otherwise peaceful. You can keep giant danios with almost any other smallish freshwater species.
Varieties
Cultivated strains of giant danio exist, including albino breeds and long-finned strains.
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