Volcano Rasbora

Rasbora sp.

Volcano Rasbora (Rasbora sp.) — Easy care, Peaceful, under Rasbora. Minimum tank in the app: 14.5 US gal min; aim for 73–79°F and pH 5.5–7.5. The Volcano Rasbora is an ideal choice for both novice and experienced aquarists seeking a lively, colorful shoaler.

Volcano Rasbora (Rasbora sp.) in a planted freshwater aquarium
Care levelEasy
TemperamentPeaceful
Min tank size14.5 US gal min
pH range5.5–7.5
Temperature73–79°F
Max size1.8 in (4.5 cm)
Captive lifespan4–8 years
SchoolingYes · 6+ recommended

Captive lifespan reflects typical experience in a home aquarium, not maximum recorded age; genetics, sourcing, and care vary.

Natural distribution

Southeast Asia

  • East & Southeast Asia

Regional colours match the stocking calculator’s origin map.

Volcano Rasbora Tank Setup

Create a mid to upper-level swimming space with ample cover, such as dense plants and driftwood, to facilitate shoaling while allowing some open water for swimming. A gentle flow mimics their natural habitats, and a soft substrate can promote foraging behaviors. Lighting should be moderate, highlighting their colors without causing stress.

What Do Volcano Rasboras Eat?

They prefer small, varied foods like micro pellets, flakes, and live or frozen options, which should be fed multiple times daily to minimize competition. They can be somewhat timid feeders, so introducing food in multiple locations can help ensure all fish are nourished.

Volcano Rasbora Tank Mates

Ideal tank mates include other small, peaceful species that occupy different swimming zones, such as small tetras or rasboras. Avoid larger or aggressive fish that may intimidate them. When kept in groups, Volcano Rasboras exhibit lower stress levels, and maintaining a minimum group size of six is essential; overcrowding can lead to stress-related issues.

Are Volcano Rasboras Good for Beginners?

In App-aquatic we file this under easy care. That still means a cycled tank, realistic stocking, and parameters that do not swing every weekend. Aquarists often underestimate the importance of group size, leading to stress and poor health in smaller groups. neglecting water parameters, particularly pH and temperature, can result in behavioral issues and increased susceptibility to disease.

Building a community? Run the full list through the stocking calculator before you add anything else.

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