Rasboras, danios, and barbs
Bitterling
Rhodeus amarus
Photo: Viridiflavus · CC BY-SA 3.0 · Wikimedia Commons
Key facts
- Temperature4–24 °C
- pH7–8
- Minimum tank100 l
- Adult size8 cm
- Difficulty★★☆☆☆
- Lives in a groupof 6 or more
- TemperamentPeaceful
- WaterFresh
Full profile
- Family
- Acheilognathidae
- Origin
- Central and Eastern Europe
- Size
- 8 cm
- Temperature
- 4 – 24°C
- pH
- 7.0 – 8.0
- GH
- 8 – 20 °dGH
- Difficulty
- ★★☆☆☆
- Water type
- freshwater, temperate
- Swimming level
- medium
- Behavior
- Pacific
- Minimum number of individuals
- 6
- Minimum aquarium size
- 100 L
- Diet
- omnivore
- Reproduction
- oviparous; the female lays her eggs inside live river mussels
Notes: Males in breeding season turn violet and red. Their reproduction depends on a freshwater bivalve—a fascinating relationship. Suitable for cold-water aquariums or ponds.
