An endangered, stunningly colored cyprinid endemic to the fast-flowing streams of the Western Ghats in India. Characterized by a torpedo-shaped body with a striking red line and black stripe. They are highly active, fast swimmers that require highly oxygenated water, strong flow, and cooler tropical temperatures. They are strictly shoaling fish and can be skittish if kept in small numbers.
At a Glance
Tank Requirements
Water Parameters
Temperament & Compatibility
Available Varieties
Each variety inherits the species defaults above. Only differences are highlighted.
Standard
The classic form with the distinct red and black lateral stripes. Requires a long tank (4ft/120cm minimum) to accommodate their speed.
Differs in 1 trait from base species
Also known as: Wild Type
Gold Variant
A captive-bred xanthic morph where the black pigmentation is replaced by yellow/white, but the red stripe remains. Husbandry is identical to the standard form.
Differs in 1 trait from base species
Also known as: Lutino, Gold Roseline
Denison Barb (Roseline Shark) Care Summary
The Denison Barb (Roseline Shark), scientifically known as Sahyadria denisonii, belongs to the Cyprinids family group. Adults reach a maximum size of approximately 15 cm and have a fusiform body shape with a moderate growth rate. Classified as mostly peaceful, this species primarily occupies the mid-level and bottom zones of the aquarium and produces a medium level of biological waste.
To thrive, the Denison Barb (Roseline Shark) requires a freshwater only aquarium with a minimum volume of 200 litres and a tank length of at least 120 cm. Water temperature should be maintained between 15°C and 26°C, with a pH range of 6.5–7.8 and a general hardness of 5–25 dGH. A high water flow is preferred. To replicate their natural habitat, the tank should include plants - densely covered, driftwood (digestion/hiding), and smooth gravel (sensitive barbels).
As a schooling species, Denison Barb (Roseline Shark) should be kept in groups of at least 6. Keepers should be aware that this species may uproot or eat live plants and is a known jumper, so a tight-fitting lid is essential. This species is available in 2 varieties: Standard and Gold Variant. Each may differ slightly in size, temperament, or care needs, so it is worth checking the specific requirements of the variety you plan to keep.
Similar Species
Cherry Barb
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Tiger Barb
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Boeseman's Rainbowfish
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