Japanese Rice Fish (Medaka) Care Guide
Oryzias latipes
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Bioload Score
600
- Max Size
- 3.8 cm / 1.5"
- Temperature
- 18–25°C (64–77°F)
- pH Range
- 6.0 – 8.0
- Min Tank Size
- 37L (10 gal)
- Min Group Size
- 3 fish
- Tank Level
- Mid
- Origin
- Southeast Asia
- Temperament
- Peaceful
- Difficulty
- Easy
- Breeding Difficulty
- Moderate
Diet
Omnivorous. Feed a varied diet, including high-quality flakes, live or frozen foods such as brine shrimp, daphnia, and small insects.
Community Compatibility
Generally peaceful and suitable for community aquariums. Keep them in groups of three or more. Avoid aggressive tankmates.
Good to Know
Medaka are recognized for their hardiness, adaptability, and unique breeding characteristics. They have been historically significant in scientific research and are culturally important in Japan.
Gender Differences
Male Medaka are often more colorful and exhibit elongated anal and dorsal fins during the breeding season. Females tend to have a rounder abdomen, especially when carrying eggs.
Stock Japanese Rice Fish (Medaka) in Your Tank
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