Espei Rasbora
Trigonostigma espei
Espei Rasbora (Trigonostigma espei) — Easy care, Peaceful, under Rasbora. Minimum tank in the app: 10.6 US gal min; aim for 73–82°F and pH 5.5–7.5. Espei Rasboras are ideal for aquarists seeking a vibrant yet manageable shoaling species, particularly suited for small to medium tanks.

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.
Espei Rasbora Tank Setup
Create a dynamic environment by incorporating mid to upper-level plants and open swimming spaces to encourage natural behaviors. Use fine substrate to mimic their natural habitat and provide both shaded areas and bright lighting to stimulate activity. Ensure adequate water movement to align with their native streams, promoting health and vitality.
What Do Espei Rasboras Eat?
As omnivores, Espei Rasboras prefer small, finely crushed foods and live or frozen options that mimic their natural diet. Feeding should be frequent but moderate to prevent competition and ensure each fish gets its share.
Espei Rasbora Tank Mates
Ideal companions include similarly sized and peaceful species that occupy different tank zones, such as small tetras or rasboras. Avoid larger or aggressive fish that could intimidate or outcompete them. Within their own species, maintaining groups of six or more is essential, as smaller numbers can lead to increased stress and diminished social interaction.
Are Espei 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. Many aquarists underestimate the importance of group size, leading to social stress and erratic behavior in smaller shoals. neglecting water quality and parameters can lead to health issues, as these fish are sensitive to fluctuations in pH and temperature.
Building a community? Run the full list through the stocking calculator before you add anything else.
Log tests and reminders in App-aquatic—free, same data you see here.




