Species Profile
Species Library

Denison Barb

Accuracy: Verified
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This profile has completed research review. Source-backed care information is shown below. Final publication checks are still pending.
Species profile

Denison Barb

Dawkinsia denisonii
Peaceful Moderate care 300 L minimum aquarium 12–15 cm adult size Midwater Minimum group: 6

About this species

General notes for hobby use.

Fast, oxygen-demanding Indian river barb; a six-plus group needs a long tank with strong flow and open swimming room.

Water parameters

Suggested general range for long-term care.

Temperature 15–25 °C
pH 6.8–7.8
GH 5–25 dGH
KH Not yet documented
Flow preference High
Data confidence Verified

Behaviour

General behaviour traits used by TanksConnected compatibility checks.

Minimum group size Minimum group: 6
Tank zone Midwater
Territory level Low
Predation risk Tiny fry
Bioload factor 1.8
Active shoaling fish suited to cooler, highly oxygenated moving water. Avoid warm sluggish community setups.

Compatibility flags

Quick cautions for common tank-planning issues.

Fin nipper No
Plant safe Caution
Shrimp safe No / caution
Snail safe Yes
Cave breeder No
Digs substrate No
Jump risk Yes

Natural history & care

Research-backed context for long-term aquarium care.

Lifespan Not yet documented
Diet type Omnivore
Minimum aquarium volume 300 L
Minimum footprint 120 × 50 cm
Accepted scientific name Dawkinsia denisonii
Alternative names Denison Barb, Red-line Torpedo Barb, Roseline Shark, Sahyadria denisonii, Puntius denisonii
Native range
Western Ghats of India, especially Kerala and adjoining river systems.
Natural habitat
Clear, well-oxygenated hill streams and rivers with rock, gravel and strong seasonal current.
Diet & feeding
Generalist feeder taking invertebrates and plant/algal matter; provide varied foods rather than relying on flake alone.

Breeding & sexing

Research-backed guidance for identifying sexes and reproductive behaviour.

Sexing
Mature females are usually deeper-bodied; males can be slimmer and more intensely coloured, but dimorphism is not dramatic.
Breeding
Spawning is not reliably routine in ordinary community aquaria; commercial propagation is more established than casual home breeding.