Matsui Yellow Emperor Long Fin

The Matsui Yellow Emperor Long Fin Medaka (Oryzias latipes) is a striking golden ricefish with elegant extended fins, peaceful schooling behaviour, and excellent adaptability. A group looks best in a planted aquarium with floating cover and gentle water movement.

Care Guide

• Tank Size: Minimum 40L; keep in groups of 6 or more
• Water Parameters: pH 6.5–8.0 | Temp 18–26°C | Freshwater, soft to moderately hard
• Diet: Omnivore; fine flakes, micro pellets, baby brine shrimp, daphnia, and other small foods
• Temperament: Peaceful and active; suitable for calm community aquariums
• Tank Setup: Planted aquarium with floating cover, open surface access, gentle filtration, and a secure lid
• Skill Level: Beginner
• Max Size: Approximately 3–4cm