The Oryzias latipes “Orange”, commonly known as the Japanese Ricefish or Medaka, is a small, peaceful, and hardy species native to East Asia. Its brilliant orange hue and calm temperament make it a favorite among both novice and experienced aquarists. This species is well-suited to indoor aquariums and outdoor mini ponds due to its impressive tolerance to varying temperatures.
Behavior and Compatibility:
These fish are schooling and social, thriving best when kept in groups of six or more. They coexist harmoniously with other peaceful fish species such as guppies, endlers, danios, and small rasboras. Avoid housing them with aggressive or fin-nipping species.
Tank Setup Recommendations:
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Tank Size: Start with at least 30 liters (8 gallons) for a small group.
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Substrate: Fine sand or gravel enhances their natural foraging behavior.
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Plants: Floating and rooted plants like Anubias, Hornwort, and Java Moss offer shelter and breeding sites.
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Lighting: Moderate lighting to bring out their bright coloration.
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Filtration: Gentle filtration ensures clean water without strong currents.
Feeding:
The Orange Medaka is omnivorous and undemanding. Offer a balanced diet of high-quality micro pellets, flakes, and occasional live or frozen foods such as daphnia and brine shrimp. Regular varied feeding promotes color vibrancy and vitality.
Breeding:
Breeding Oryzias latipes is simple. Females scatter adhesive eggs on fine plants or spawning mops. The eggs hatch within 7–10 days, and fry can be fed infusoria or powdered fry food. With proper conditions, breeding can occur year-round.
Why Choose Oryzias latipes “Orange”?
✅ Peaceful and hardy – perfect for community tanks
✅ Beautiful orange coloration adds vibrance
✅ Ideal for beginners and low-maintenance setups
✅ Excellent for outdoor ponds and nano aquascapes
✅ Easy to breed and observe fascinating natural behavior

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