Barred Danio
Devario pathirana
Barred Danio is a peaceful middle swimmer. Keep in a school of at least 6.
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Need help with Barred Danio?
Explore compatibility, care or problems using this guide and your aquarium’s conditions.
Quick facts
- Adult size
- ≤ 3.1" (≤ 8 cm)
- Aquarium size
- 64 US gal (243 L) or larger / ≥ 47.2" (≥ 120 cm) minimum length
- Care level
- Beginner – Intermediate
- Temperament
- Peaceful
- Swimming zone
- Middle swimmer
- Temperature
- 73–79°F (23–26°C)
- pH
- 6–7.5
- GH
- 1–8 dGH
- Diet
- Omnivore
- Lifespan
- up to 5 years
- Group behavior
- Keep in a school of at least 6
Care requirements
Care level: Beginner – Intermediate.
Lifespan: up to 5 years.
Aquarium size and space needs
Minimum aquarium size: 64 US gal (243 L) or larger / ≥ 47.2" (≥ 120 cm) minimum length. Plan the layout and stocking within that limit.
Water parameters
Suitable water: temperature 23–26 °C, pH 6–7.5, GH 1–8 dGH.
Temperament and compatibility
Barred Danio is peaceful and suits calm community fish.
Swimming zone and behavior
This fish uses the middle part of the aquarium, so leave enough open swimming space for movement and feeding.
Feeding
As an omnivore, Barred Danio should receive a varied diet rather than one repeated food type.
Before adding this fish
- Plan for an aquarium of 64 US gal (243 L) or larger / ≥ 47.2" (≥ 120 cm) minimum length.
- Make room for its social group.
- Avoid aggressive or highly competitive fish.
- Keep in a school of at least 6.
- Offer a varied diet suited to this species’ documented feeding habits.
Natural habitat and origin
Origin: Sri Lanka.
Important notes
- Use adult school and long tank, secure jumping lid; can nip fins when crowded or understimulated.
- Wild population is range restricted; purchase captive-bred legally sourced fish.
Similar fish profiles
Use these profiles to compare fish with similar care level, size, temperature range, or swimming behavior.
FAQ
How large does Barred Danio get?
Barred Danio reaches ≤ 3.1" (≤ 8 cm).
What aquarium size does Barred Danio need?
Use an aquarium of at least 64 US gal (243 L) or larger / ≥ 47.2" (≥ 120 cm) minimum length.
Is Barred Danio peaceful?
Yes. Barred Danio is recorded as peaceful and is best planned with calm community fish that do not harass it or dominate the feeding area.
What temperature is suitable for Barred Danio?
Keep it between 23 to 26 °C.
Should Barred Danio be kept alone or in a group?
Barred Danio: Keep in a school of at least 6.
