Similar size fish - Fish that are 1 inch bigger or smaller.Community Fish - Peaceful Freshwater fish.Beginner Fish - Freshwater fish for beginners.For Information on keeping freshwater fish, see:įreshwater Aquarium Guide: Aquarium Setup and Care They have been used for mosquito control and have invasively populated some environments. Zebrafish are tropical and can't survive in areas of extreme weather conditions. Take care that neither specimens of this fish nor fertilized eggs be released into the environment. Don’t be surprised if the school spends a lot of time in the water flow of the filters or pumps as a swift-moving environment is what they are accustomed to in nature. ![]() But even though they are not finicky about water conditions, it's best to not keep your aquarium at any extreme. They will generally do just fine without a water heater as they are comfortable at temperatures down to the low 60s (F). Zebrafish are very durable and can withstand an impressive range of water temperature and conditions. Just make sure that the danio will not be eaten and that the other fish aren’t startled by swift movement. They can be housed with most any community fish. Because they are so small, a school is suited to a smaller aquarium of at least 20 gallons. A schooling fish, they should be kept in a small group of at least 3 individuals, though 5 or more is best. They are prolific breeders and the easiest type of egg layers to breed. These hardy and attractive Cyprinids are ideal for beginners. A recently introduced variety is a Zebrafish (Danio rerio) genome known as the “Glo-fish.” This is a genetically modified little fish available in beautiful fluorescent colors of bright red, green, orange-yellow, blue, and purple. There is also a variety called the Hybrid Danio, for those who just can’t choose between spots and stripes, which has a combination with both. Other well known varieties are the Leopard Danio and Longfin Leopard Danio, both of which have spots instead of stripes. Some of the best known include the Longfin Zebra Danio and color morphs like the Golden Zebra Danio, Albino Zebra Danio, Longfin Blue Danio, and Sandy Zebrafish. Other common names it is known by are Zebrafish, Striped Danio, and Zebra Fish.ĭozens of variations of this Danio are selectively bred today, with a variety to suit every taste. This pretty, inexpensive fish is a great choice for both beginning and advanced aquarists. ![]() This is one of the first types of tropical fish to ever be kept in the aquarium, and it is still enormously popular. It's easy to recognize with its attractively striped, black and white "zebra" patterned body. 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.
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