Roloff’s Pygmy Barb
Oreichthys parvus
Roloff’s Pygmy Barb is a peaceful middle swimmer.
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Quick facts
- Adult size
- ≤ 1.2" (≤ 3 cm)
- Aquarium size
- 15 US gal (57 L) or larger
- Care level
- Beginner – Intermediate
- Temperament
- peaceful
- Swimming zone
- Middle swimmer
- Temperature
- 73–81°F (23–27°C)
- pH
- 6.5–7.5
- GH
- 4–12 dGH
- Diet
- Omnivore
- Lifespan
- up to 5 years
Care requirements
Care level: Beginner – Intermediate.
Lifespan: up to 5 years.
Aquarium size and space needs
Minimum aquarium size: 15 US gal (57 L) or larger. Choose an aquarium that meets the listed minimum requirements.
Water parameters
Suitable water: temperature 23–27 °C, pH 6.5–7.5, GH 4–12 dGH.
Temperament and compatibility
Roloff’s Pygmy Barb 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.
Before adding this fish
- Plan for an aquarium of 15 US gal (57 L) or larger.
- Avoid aggressive or highly competitive fish.
- Offer a varied diet suited to this species’ documented feeding habits.
Natural habitat and origin
Origin: Laos, Thailand.
Similar fish profiles
Use these profiles to compare fish with similar care level, size, temperature range, or swimming behavior.
FAQ
How large does Roloff’s Pygmy Barb get?
Roloff’s Pygmy Barb reaches ≤ 1.2" (≤ 3 cm).
What aquarium size does Roloff’s Pygmy Barb need?
Use an aquarium of at least 15 US gal (57 L) or larger.
Is Roloff’s Pygmy Barb peaceful?
Yes. Roloff’s Pygmy Barb is generally peaceful. Choose calm companions that won’t harass it or crowd it out at feeding time.
What temperature is suitable for Roloff’s Pygmy Barb?
Keep it between 23 to 27 °C.
