Scientific Name:Oryzias latipes
Common Name:Medaka Rice Fish
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Komachi Medaka pairs milky white and blazing orange in a striking two‑tone combo that really steals the show. Like other ricefish, they sport an opalescent sheen that really pops under good aquarium lighting. Those bold color blocks stand out beautifully against lush green plants and dark substrate. They look great from the front of a glass tank and are just as famous for turning outdoor tubs and patio ponds into a top‑down spectacle. Add a school and you’ll be showing off serious fin‑esse.
Behavior
- These fish are exceptionally hardy, beginner-friendly, and adaptable to a wide variety of aquarium parameters, including brackish water setups.
- In a standard home aquarium, these active fish are primarily mid- to top-level swimmers.
- They are a deeply peaceful species that should be housed alongside other gentle nano fish and larger peaceful invertebrates.
- They do best in schools of 6 or more and will display their best color and behavior when kept in appropriate numbers.
- This species has the potential to jump, so a well-fitting lid or dense floating live aquarium plants are highly recommended for coverage.
Diet
Feeding Rice Fish is simple. They are omnivores with a healthy appetite and will eagerly eat a wide variety of fish food. To maintain their health, provide a balanced diet of high-quality flakes and micro pellets. They will also readily accept live or frozen foods, such as baby brine shrimp or daphnia, which mimic their natural diet and support optimal energy levels. Feed them small amounts once or twice daily.
Quick Care Stats
- Origin:Tank-bred
- Temperament:Peaceful – Fin-tastic for community tanks
- Average Size:1 inch
- Diet:Omnivore
- Minimum Tank Size:10 Gallons
- Ideal Group Size:School of 6 or more
Want to make sure your Medaka stay healthy and thrive?Click here for a complete Japanese Rice Fish Care Guide






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