Metallic Black Medaka
A dramatic black-bodied medaka whose deep metallic scales throw an intense blue shine under strong external light — from certain angles the whole school looks electric blue.
Quick Facts
| Scientific name: | Oryzias latipes |
|---|---|
| Common name: | Japanese ricefish / Medaka |
| Strain: | Metallic Black |
| Adult size: | Up to approximately 4 cm |
| Temperament: | Peaceful and social |
| Temperature: | 16–22°C |
| pH: | 6.5–8.5 |
| Hardness: | 5–25 dGH |
| Group size: | Keep 8 or more where possible |
FAQ
What makes the Metallic Black Medaka stand out in a fish tank?
The deep black body with metallic scales produces a strong blue shimmer under bright light, creating a striking visual effect when viewed from certain angles.
Is the Metallic Black Medaka suitable for beginners?
Yes, it is peaceful and social, making it a good choice for beginner aquarists who want a visually appealing and easy-to-care-for fish.
How should I set up the tank for Metallic Black Medaka?
Maintain water temperature between 16–22°C, pH between 6.5–8.5, and hardness from 5–25 dGH. Keep at least 8 fish together to promote natural behavior and social interaction.
Rebecca Sutherland –
The fish are incredibly beautiful with a stunning blue sheen when the light hits them just right. They’re active and peaceful, and I’ve kept them in a 10-gallon tank with good results. The color change under different lighting is mesmerizing.
Matt Carr –
I bought this strain for a school project and they’ve been thriving. They stay together in groups and don’t fight. The blue shimmer is a real highlight in the tank.
Donna Gray –
The fish look great and are easy to maintain. I noticed the blue glow only at certain angles, which is a nice surprise. I’d recommend keeping them in a group of at least 8.