More info
Datasheet
| Minimum Tank Size | 96 litres / 25.36 US gallons |
| Maximum Size | 4.5cm / 1.77inches |
| Temperature | 18°C / 64.40°F - 26°C / 78.80°F |
| Hardness | 2.02dgH / 36ppm - 12.05dgH / 215ppm |
| pH | 6.5-7.5 |
General Description
Brachydanio Kerri, commonly known as the Blue 'Danio', is a peaceful and schooling species belonging to the family Cyprinidae. It showcases a powdery-blue or yellow-green base body coloration with pinkish-yellow lateral stripes extending from the opercle to the caudal peduncle. This species can be challenging to find in pet stores due to past confusion regarding its identification.
Aquarium Setup
The Blue 'Danio' thrives in a well-furnished community tank with a group of at least 8-10 individuals. It adapts well to various water chemistry conditions and can coexist with popular fish species like tetras, livebearers, rainbowfishes, anabantoids, catfishes, and loaches. For an engaging project, creating a community tank with species native to its habitat in southern Thailand is recommended. The tank setup should include ample vegetation, a substrate of rocks and gravel, and additional powerheads for water flow.
Behaviour
Being a schooling species by nature, Brachydanio Kerri prefers to be kept in groups to reduce stress and display their vibrant colors. When in decent numbers, males compete for female attention, enhancing the aesthetic appeal of the group. These fish are peaceful and contribute to a harmonious community tank environment.
Feeding and Diet
The Blue 'Danio' species primarily feed on insects, both aquatic and terrestrial, along with algae, plant material, and organic detritus. In aquariums, they readily accept a varied diet including high-quality dried food as a staple supplemented with live and frozen options like bloodworms, Daphnia, and Artemia. Regular feeding ensures their nutritional needs are met.
Reproduction & Dimorphism
Brachydanio Kerri follows the typical egg-scattering spawning behavior common among cyprinids. They do not exhibit parental care, with females being slightly larger and rounder-bellied than males, especially noticeable during spawning periods. Controlled breeding setups with suitable spawning media and conditions can increase fry yield significantly.
Habitat and Distribution
Found in forest streams and clear-watered rivers in southern Thailand, including islands like Koh Yao Noi and Phuket, these danios prefer substrates of rocks and gravel with minimal macrophytes. They inhabit areas rich in biofilm with sparse aquatic vegetation. Populations exhibit variations in body coloration based on their specific locality within the species' distribution range.