Platinum Miyuki Ricefish: The Glowing Medaka Strain
If you've ever seen a tank of Platinum Miyuki ricefish catch the light, you don't forget it. This is one of the most eye-catching Medaka (Japanese ricefish) strains in the hobby — a pale, pearly body topped with a brilliant iridescent stripe that glows electric blue-white down the back. Here at Tropical Treasures Wyo we love showing this strain off, so let's talk about what makes it special and how to make it shine.
What is a Platinum Miyuki ricefish?
The Platinum Miyuki is a selectively bred color strain of the Japanese Medaka (Oryzias latipes) — the same species covered in our full ricefish care guide. "Platinum" refers to the soft, opaque pearly-white body coloration, while "Miyuki" describes the shimmering iridescent line that runs along the dorsal ridge. Put them together and you get a fish that looks like it's been dipped in liquid light. You can usually find them on our Platinum Miyuki Medaka ricefish listing.
The signature Miyuki shimmer
The "Miyuki glow" is a reflective iridophore stripe along the top of the fish. It's strongest when viewed from above — which is exactly why these fish are so prized for shallow, top-down displays and traditional outdoor pot keeping. The platinum base makes that shimmer stand out even more than it does on darker-bodied Miyuki strains. Not every individual carries the trait equally, so picking good stock matters (more on that below).
How to pick good specimens
When you're choosing Platinum Miyuki ricefish, look from above and pick fish with a clean, unbroken iridescent line that runs as far toward the head as possible — the most prized fish glow from nose to tail. Avoid individuals with patchy or faint striping if your goal is a dazzling display. Healthy fish should be active, feeding eagerly, and have crisp fins. Browse what's swimming in our nano fish collection and ask us to net the brightest ones for you.
Setting the stage for maximum glow
You can dramatically enhance the Miyuki effect with the right scape. A dark substrate makes the platinum body and shimmer pop, while floating plants like American frogbit create dappled overhead light that sets the iridescence sparkling. Keep flow gentle — a planted, calm tank viewed from above shows these fish at their absolute best. For the full husbandry details (parameters, tank size, filtration), lean on our complete ricefish care guide.
Feeding for color
Like all Medaka, Platinum Miyuki are easy-going omnivores with small mouths. A quality micro pellet such as Hikari Micro Pellets makes a great staple, and a varied diet with frozen and live treats keeps them vigorous. While the platinum/Miyuki coloration is largely genetic, good nutrition and low stress let that genetic potential show fully. Explore options in our fish food collection.
Who is this strain for?
The Platinum Miyuki is perfect for keepers who want a peaceful, beginner-friendly fish with serious wow-factor — especially anyone planning a shallow tank, a desktop nano, or an outdoor summer pot. They're gentle enough for shrimp tanks too. New to small fish? Start with our best nano fish roundup.
The bottom line
The Platinum Miyuki ricefish takes the hardy, easygoing Medaka and wraps it in a glow you have to see in person. Set up a calm, dark-bottomed, top-down tank and you'll have living jewelry. Swing by the shop in Cheyenne and we'll help you pick the brightest fish in the tank.