
Denison Barb
Sahyadria denisonii
Family: Cyprinidae • Origin: South Asia
Denison Barbs (Roseline Sharks) are stunning torpedo-shaped fish with a bold red and black stripe. Fast swimmers that need space.
Is Denison Barb Right for Your Tank?
Denison Barb is an excellent choice for beginners — rated "intermediate" difficulty (2/5). They're hardy, forgiving of minor water parameter fluctuations, and generally easy to feed. They need at least 55 gallons — a mid-size tank commitment. Plan your space accordingly.
With a peaceful temperament, Denison Barb makes a great community fish. They coexist well with other non-aggressive species of similar size. This is a schooling species — keep at least 6 together, or they may become stressed and display abnormal behavior. Expected lifespan: 8 years with proper care.
Common Mistakes with Denison Barb
Keeping fewer than 6 together
Denison Barb is a schooling species — they need a group of at least 6 to feel secure. Lone or paired individuals become stressed, hide constantly, and may develop health issues or aggression.
Putting them in a tank under 55 gallons
Many beginners underestimate tank size needs. Denison Barb requires at least 55 gallons — ideally 75. Cramped tanks lead to stunted growth, aggression, and poor water quality.
Care Tips
- • Needs 55+ gallon with strong current
- • Fast swimmer — needs open space
- • Keep in groups of 6+
- • Tolerates cooler water
- • One of the most beautiful barb species
Feeding: Pellets, frozen foods, flakes, blanched vegetables.
Compatibility Notes: Peaceful but fast and large. Needs a big tank with strong current. Beautiful torpedo shape.
Tank Setup & Water Parameters
Tank Requirements
- Minimum Tank Size
- 55 gallons
- Recommended Tank Size
- 75 gallons
- Swimming Level
- middle
- Minimum School Size
- 6+ fish
Water Parameters
- Temperature
- 60–77°F
- pH Range
- 6.5–7.8
- Hardness (dGH)
- 5–20
- Water Type
- freshwater
Behavior & Temperament
- Temperament
- peaceful
- Aggression Level
- 1/5
- Schooling
- Yes
- Territorial
- No
- Fin Nipper
- No
- Predatory
- No
- Diet Type
- omnivore
- Growth Rate
- moderate
Peaceful but fast and large. Needs a big tank with strong current. Beautiful torpedo shape.
Breeding
- Breeding Type
- egg layer
- Breeding Difficulty
- very difficult
- Lifespan
- 8 years
Ideal For
Compatible Tank Mates
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