More info
Datasheet
| Minimum Tank Size | 90 litres / 23.78 US gallons |
| Maximum Size | 6.0cm / 2.36inches |
| Temperature | 15°C / 59.00°F - 21°C / 69.80°F |
| Hardness | 2.02dgH / 36ppm - 10.03dgH / 179ppm |
| pH | 6.5-7.5 |
General Description
The Devario Interruptus, more commonly known as the Interrupted Danio, is a species that remains relatively unknown in the aquarium trade. Distinguished by its incomplete lateral line consisting of 7-17 pored scales and distinct flank markings, this species is often confused with similar-looking congeners like D. maetaengensis and D. shanensis.
Aquarium Setup
The Interrupted Danio thrives in an environment mimicking a flowing stream or river. A well-maintained aquarium with variably-sized rocks, sand, fine gravel, driftwood, and hardy aquatic plants like Microsorum, Bolbitis, or Anubias species is ideal. Water conditions should feature a pH of 6.5-7.5, hardness of 36-179ppm, and a temperature range of 15-21°C. Regular water changes of 30-50% volume are recommended, and a secure cover is essential due to the species' jumping tendencies.
Behaviour
Although not inherently aggressive, the Interrupted Danio's active and vigorous feeding behavior may intimidate slower or timid tankmates. It is best kept with robust, similarly-sized fish in groups of at least 8-10 specimens to reduce stress and enhance natural schooling behavior. Males may display enhanced colors in the presence of rivals as they establish hierarchical positions within the group.
Feeding and Diet
In the wild, Interrupted Danios primarily feed on insects and larvae. In captivity, they accept a varied diet including high-quality dried foods supplemented with live or frozen options like bloodworms, Daphnia, and Artemia. This diverse diet helps maintain optimal coloration and overall health.
Reproduction & Dimorphism
Interrupted Danios are egg-scattering free spawners without parental care. Conditioning a group in a separate tank with appropriate spawning substrates can yield successful breeding. Sexually mature females are rounder-bellied, less colorful, and slightly larger than males. Dominant males exhibit bright orange coloration on the lower half of their bodies during breeding.
Habitat and Distribution
The Interrupted Danio is endemic to the Hotha/Husa valley in Yunnan Province, China, with additional sightings in neighboring regions. Found in small, swiftly-flowing streams with clear water and substrates of sand, gravel, and rocks, this species coexists with various sympatric fish species. Frequently collected at altitudes of 750-1500 meters, their natural habitats provide marginal vegetation and shade.