Miyako tango (Tanakia tanago)

Family: Cyprinidae

A tiny, peaceful omnivore cyprinidae from Japan; the Miyako tango shows its best colour in planted, cooler water — moderate care.

Care parameters

Water temperature: 18–26 °C
pH: 6.5–7.5
GH hardness: 5–15 dGH
Adult length: 3.5–5 cm
Minimum tank: 50 L
Water layer: Mid-water swimmer; keep 6+
Difficulty: Moderate
Temperament: Peaceful
Origin: Japan

Species overview

A Cyprinidae species native to Japan: Tanakia tanago lives mid-water swimmer; keep 6+ over clear streams, rivers and still waters. Peaceful. Adults reach 3.5–5 cm. It is one of the aquarium-kept Tanakia species we profile, alongside Tanakia koreensis, Tanakia himantegus, Tanakia lanceolata.

Native biotope

Habitat: Clear streams, rivers and still waters
Flow: Moderate flow
Dissolved O₂: Average oxygen needs

Aquascape & hardware

Substrate: Smooth gravel and sand with open floor space
Hardscape: Driftwood, water-worn stones and shelters that mimic the native biotope
Plants: Hardy plants on hardscape; keep the floor open

Temperament, diet & tankmates

Schooling: Keep 6+; larger groups settle better
Diet: Omnivore; quality prepared foods with variety
Recommended tankmates: Amur False Gudgeon — Similar size and water needs
China-Bitterling — Similar size and water needs
Acanthorhodeus chankaensis — Similar size and water needs
Avoid keeping with: Large aggressive cichlids — Bullying and injury risk
Known fin nippers — Constant stress and fin damage

Breeding & notes

Sexual dimorphism: Males are typically slimmer and more intensely colored; females fuller-bodied
Breeding method: Spawning; condition with rich foods and simulate seasonal changes

Frequently asked questions

Is the tanago difficult to keep?

Not difficult, but exacting: small, active and sensitive to neglect. Clean, stable, gentle water and a proper group size are the whole formula.

Why is it endangered?

Habitat loss above all: concrete-lined waterways, lost irrigation ditches, and vanishing mussel populations. Its story is the story of Japan's traditional lowland waters.

Can I keep tanago in a community tank?

With other tiny, gentle, temperate fish, yes. Avoid anything large, boisterous or warm-water; this is a species for a dedicated small-fish setup.

What does the name tanago mean?

It comes from a traditional Japanese fishing style dedicated to tiny native fish, which made this little bitterling a cultural symbol far beyond the aquarium hobby.