Our Guide To Keeping Japanese Rice Fish (Medaka)
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About Fish Species:
- Scientific name: Oryzias latipes
- Common name: Japanese Rice Fish, Killifish, Medaka
- Family: Adrianichthyidae
- Origin: East Asia, including Japan, Korea, and China
- Adult length: 3 cm
- Lifespan: 2 to 3 years
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Tank Setup:
- Japanese Rice Fish thrive in a well-planted tank with gentle water flow. A tank size of 20L is suitable for a small group.
- Provide fine-leaved plants like Java Moss and floating plants to create shaded areas and replicate their natural habitat.
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Water Parameters:
- Maintain a slightly alkaline to neutral pH range of 7.0 to 7.5 for Japanese Rice Fish.
- Keep the water temperature between 22 to 28°C (72 to 82°F).
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Filtration and Water Flow:
- A gentle water flow is suitable for these fish, so choose a filter with adjustable flow settings.
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Diet:
- Japanese Rice Fish are omnivores and accept a variety of foods. Provide them with high-quality micro-pellets, flakes, and small live or frozen foods.
- Include brine shrimp, daphnia, and micro worms in their diet to enhance coloration and overall health.
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Tank mates:
- Japanese Rice Fish are peaceful and can be kept with other small, non-aggressive community fish. Avoid keeping them with fin-nipping species.
- Compatible tank mates include small tetras, rasboras, and other peaceful nano fish.
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Behavior and Compatibility:
- Japanese Rice Fish are social and should be kept in groups of at least six individuals to encourage natural behaviors.
- They coexist well with peaceful tank mates and are suitable for community aquariums.
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