Denison Barb

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.

Min Tank
55 gal
Max Size
6"
Temperature
60-77°F
pH
6.5-7.8
Lifespan
8 years
School Size
6+
Swim Level
middle
Hardness
5-20 dGH
peacefulintermediateomnivoreschooling

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
6077°F
pH Range
6.57.8
Hardness (dGH)
520
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

55 gallonlarge communitycool water tank

Compatible Tank Mates

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