Medaka Rice Fish (Oryzias latipes) – 2.5–3 inches

🐠 Species Overview

The Medaka, also known as the Japanese rice fish, is a small, hardy freshwater species native to East Asia. They are commonly found in rice paddies, streams, and ponds. Medaka are peaceful, social fish that thrive in groups and are suitable for both beginners and experienced aquarists. They are also used in scientific research due to their adaptability and short lifespan.

🏡 Aquarium Setup & Care Instructions

Tank Size & Environment

• Minimum Tank Size: 10 gallons (38 liters) for a small group.

• Substrate: Fine gravel or sand.

• Decor: Heavily planted with floating plants, bogwood, and leaf litter to mimic their natural habitat.

• Water Parameters:

  • Temperature: 59–82°F (15–28°C).

  • pH: 6.5–7.5.

  • Hardness: Soft to moderately hard water.

• Filtration: Gentle filtration to maintain water quality; sensitive to ammonia and nitrites.

Behavior & Tankmates

• Temperament: Peaceful and social; best kept in groups.

• Compatibility: Suitable for community tanks with other peaceful species of similar size.

Diet

• Feeding Habits: Omnivorous; offer a varied diet including high-quality flake foods, live or frozen foods like brine shrimp and daphnia, and occasional vegetable matter.