The fiveband barb (Desmopuntius pentazona) is a species of cyprinid freshwater fish from Southeast Asia. This species is restricted to blackwater streams and peat swamps in northwestern Borneo and possibly Peninsular Malaysia, but it has often been confused (especially in the aquarium trade) with the more widespread, closely related D. hexazona, which is similar except that it lacks the black spot at the rear base of the dorsal fin seen in D. pentazona.
The fish superficially resembles the tiger barb (Puntigrus tetrazona), except that there are five black vertical bands on an orange or gold body instead of four bands on the tiger barb. The fish will grow to a maximum length of 8.8 centimetres (3.5 in) TL.
Fiveband barbs are egg-scatterers that spawn among a coarse gravel bed in open water. Once spawning is finished, they will usually eat any of the approximately 200 eggs that they find. It is usually necessary to separate the fish from the eggs after spawning in order to prevent the eggs from being eaten. The eggs will hatch in approximately 1 day.
In the aquarium
The fiveband barb is a harmless, active schooling fish that is usually kept in groups of 5 or more. They prefer a well planted environment with rocks and driftwood but still need plenty of space to school. Also they are community fish meaning they can be in the tank with other fish such as guppies, mollies, harlequin rasboras and some types of tetra.
- "Cyprinds - Barbs". mongabay.com. Archived from the original on December 23, 2004. Retrieved December 15, 2004.
- "Hexazon Barb". Drs. Foster & Smith's LiveAquaria.com. Retrieved December 15, 2004.
- Kottelat, M. (2013): The Fishes of the Inland Waters of Southeast Asia: A Catalogue and Core Bibliography of the Fishes Known to Occur in Freshwaters, Mangroves and Estuaries. Archived 2013-12-02 at the Wayback Machine The Raffles Bulletin of Zoology, 2013, Supplement No. 27: 1–663.
- Froese, Rainer; Pauly, Daniel (eds.) (2019). "Desmopuntius pentazona" in FishBase. June 2019 version.
- SeriouslyFish: Desmopuntius pentazona. Retrieved 21 June 2019.
- SeriouslyFish: Desmopuntius hexazona. Retrieved 21 June 2019.
- Collins, R.; K.F. Armstrong; R. Meier; Y. Yi; S.D.J. Brown; R. H. Cruickshank; S, Keeling; C. Johnston; (2012). Barcoding and Border Biosecurity: Identifying Cyprinid Fishes in the Aquarium Trade. PLoS ONE 7(1): e28381.