While you usually won’t see your zebra danio at the bottom of your tank, a sandy or silt substrate will make your mini habitat look even more natural! They live in the middle and upper water column, so it is important to give plenty of space for them to skim along just below the surface. They love well-planted aquariums but also need large, open swimming areas. Zebra danios are very hardy and resilient, which combined with their low cost in stores, makes them an excellent easy starter freshwater fish. However, these fins are susceptible to nipping, so make sure your tankmates will get along with your new fish! Especially popular are the genetically modified, trademarked variety known as the Glofish™ their genes have been altered to glow brightly under black lights and come in many vivid colors. Other varieties include the rarer albino variety, as well as the long-finned veiltail variants with their long, beautiful flowing tails. Regardless, they are both easy tropical schooling fish and compatible with each other. When purchasing zebras, you’ll often find a leopard danio or two mixed in, or something halfway in between. One common variant, Danio frankei (also known as the leopard danio) is usually considered a variant of Danio rerio and not actually a true species of its own. Instead, they have plumper bodies, white bellies, and silver stripes. Females of the same species do not have any gold. Male zebra danios are torpedo-shaped and have distinguished lines of gold between their blue stripes. If you look carefully near their mouths, you’ll be able to spot two tiny whiskers. They are easily identifiable with 5 horizontal blue stripes along the sides of their signature silver/grey bodies. Zebra danios are a smaller freshwater fish species, reaching a maximum size of about 2 inches (5cm) in the aquarium setting. This is a highly social schooling species of fish, so it’s best to create a school of at least 6 they tend to adopt a more aggressive behavior in a smaller group. They’re a great, hardy fish to get if you love watching your fish being active and interesting.
The school as a single species as well as with other schools of similar fish in the aquarium. In a freshwater tank, zebra danios are curious fish who love to race around and explore caves, cubby holes, and the ins and outs of clusters of aquarium plants. While zebra danios can survive for more than 5 years in the aquarium setting, they are mostly an annual occurrence in the wild. Zebra danios that have been bred for tropical aquarium use have been heavily inbred and have become less tolerant of colder temperatures. Technically a cold-water fish (preferring a temperature range of 68☏-72☏), zebra danios thrive in any stream, pond, or river that has a stagnant to moderately flowing current. The substrate is usually soft–usually sandy or muddy–but sometimes has small pebbles or gravel intermixed. They prefer areas with some submerged plants as well as overhead vegetation. However, some zebra danio populations have begun to appear as far east as California, Connecticut, Florida, and New Mexico due to leakage from breeding facilities and pet owners releasing them directly into the wild. Their origin has been traced back to the Kosi River basin, which can be found around the lower regions of the Ganges. More specifically, their range includes Pakistan, Bangladesh, Nepal, and Bhutan, with heavy concentrations in the Ganges and Brahmaputra River basins. In the wild, zebra danios are found in many bodies of freshwater across South Asia.
However, their scientific name is being reconsidered at a molecular level and could soon join the Brachydanio genus, leading to reclassification as Brachydanio rerio. This care sheet is a guest post by Jacques from ! Minimum tank sizeĭanio rerio is commonly known as the zebra danio or the zebrafish.
Keep reading for everything you need to know about zebra danio care and keeping them in your own aquarium. Reaching a maximum size of 2 inches, this hardy fish brings excitement to small setups. The zebra danio fish is a spirited and entertaining freshwater species that are inexpensive and great for any beginner aquarium hobbyist.
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