Rosy Barb

Rosy Barb

Pethia conchonius

Family: Cyprinidae • Origin: South Asia

Rosy Barbs are large, colorful barbs that tolerate cool water. Males turn deep rosy pink when displaying. Hardy and active.

Min Tank
20 gal
Max Size
4"
Temperature
64-77°F
pH
6.5-7.5
Lifespan
5 years
School Size
6+
Swim Level
middle
Hardness
5-15 dGH
peacefulbeginneromnivoreschooling

Is Rosy Barb Right for Your Tank?

Rosy Barb is an excellent choice for beginners — rated "beginner" difficulty (1/5). They're hardy, forgiving of minor water parameter fluctuations, and generally easy to feed. A 20-gallon tank minimum is standard — most community setups will accommodate them.

With a peaceful temperament, Rosy 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: 5 years with proper care.

Common Mistakes with Rosy Barb

Keeping fewer than 6 together

Rosy 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 20 gallons

Many beginners underestimate tank size needs. Rosy Barb requires at least 20 gallons — ideally 30. Cramped tanks lead to stunted growth, aggression, and poor water quality.

Care Tips

  • Tolerates cool water (64-77°F)
  • Males turn deep pink when displaying
  • Keep in groups of 6+
  • Active — needs swimming space
  • May eat delicate plants

Feeding: Flakes, pellets, vegetables, frozen foods. Unfussy eater.

Compatibility Notes: Tolerates cooler water. Peaceful but active — may stress very shy fish. Can nip long fins occasionally.

Tank Setup & Water Parameters

Tank Requirements

Minimum Tank Size
20 gallons
Recommended Tank Size
30 gallons
Swimming Level
middle
Minimum School Size
6+ fish

Water Parameters

Temperature
6477°F
pH Range
6.57.5
Hardness (dGH)
515
Water Type
freshwater

Behavior & Temperament

Temperament
peaceful
Aggression Level
2/5
Schooling
Yes
Territorial
No
Fin Nipper
No
Predatory
No
Diet Type
omnivore
Growth Rate
fast

Tolerates cooler water. Peaceful but active — may stress very shy fish. Can nip long fins occasionally.

Breeding

Breeding Type
egg layer
Breeding Difficulty
easy
Lifespan
5 years

Ideal For

20 galloncool water tankcommunity

Compatible Tank Mates

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