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Freshwater fish care guide

Medaka Ricefish

Oryzias latipes

Hardy schooling fish tolerant of cooler temperatures.

Starter tank10+ gal
Temperature64–78°F
pH6.5–8.5
Group guide6+

Planning your aquarium

The library starting point is 10+ US gallons. Plan for the approximate 1.5-inch adult size and the species' normal activity, not just its current shop size.

The library suggests a group of at least 6. Count every individual when estimating stocking and swimming room.

Mixed-species aquariums may need substantially more space. Tank length, adult behavior, filtration, and hiding spaces all matter.

Tank setup and behavior

  • Include planting or cover without removing all open swimming space.

Provide a social group, plant cover and a secure lid; eggs may be attached to fine-leaved plants.

Hardy schooling fish tolerant of cooler temperatures.

Food and feeding

Food options: Micro pellets, Fine flakes, Baby brine shrimp.

Use appropriately sized, complete staple foods and rotate suitable foods for variety. Feed modest portions and remove uneaten food.

Compatibility

The current rule-based checker does not list a dedicated pairing warning for this species. That does not mean every pairing is safe; review temperament, adult size, diet, habitat and water requirements.