HomeFreshwater aquarium fishBarbs, danios & rasborasTanichthys micagemmae Tanichthys micagemmae Scientific name: Tanichthys micagemmae Freyhof & Herder, 2001 Tanichthys micagemmae is a freshwater fish of the family Cyprinidae that grows to about 2.3 cm (0.9 in). In the aquarium it needs a tank of at least 40 L (11 US gal), water at 20–24°C (68–75°F) and a pH of 6.0–8.0. Native range: Asia, River Ben Hai, Viet Nam. Tanichthys micagemmae care at a glanceAdult size2.3 cm (0.9 in)Minimum tank40 L (11 US gal)Temperature20–24°C (68–75°F)pH6.0–8.0Hardness2–10 dGH (36–178 ppm)DietOmnivore. Accepts flakes, freeze-dried foods, bloodworms and vegetables. BiologyDorsal soft rays (total): 8; Anal soft rays: 11. Head and body below lateral midline whitish with many small dark grey spots (versus dark reddish brown); one black and white whitish longitudinal stripe of about same width (width of black stripe 0.9-1.8 times width of whitish stripe versus 0.3-0.6); distance from dorsal-fin origin to upper margin of whitish stripe about equal to distance from anal-fin origin to lower margin of black stripe (upper distance 0.9-1.2 times lower distance versus 1.8-2.7).Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameTanichthys micagemmaeFamilyCyprinidae (Minnows or carps)OrderCypriniformes (Carps)ClassActinopterygii (Ray-finned fishes)Maximum length2.3EnvironmentFreshwater; benthopelagicClimateTropicalDistributionAsia: River Ben Hai, Viet Nam.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) More barbs, danios & rasborasDanio roseusCherry barbPuntius titteyaTicto barbPuntius tictoThree-lined rasboraRasbora trilineataTiger barbPuntius tetrazonaTinfoil barbBarbonymus schwanenfeldiiSee all barbs, danios & rasboras SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0. Aquarium care parameters compiled, checked and converted to metric and imperial units by Guppies.za.net.Last updated 28 September 2026