Youkihi Hikari
Youkihi Hikari is the glowing "Hikari" body-type version of the ever-popular Youkihi medaka variety. Its back shines with a silvery-white sheen that pairs beautifully with the vivid red-orange coloring along its body, creating a striking look from both above and the side. Viewed from above, the glowing orange hue spreads across the water's surface, catching the light differently depending on the angle, a defining charm of this variety. Calm and easygoing by nature, it gets along well in mixed tanks with other medaka. It's considered a beginner-friendly variety, thriving equally well in outdoor biotopes and indoor aquariums. Expect a lifespan of around 2 to 3 years, with adults reaching about 3 to 4 cm in length.
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Youkihi Hikari key facts
- Care level
- Beginner-friendly
- Lifespan
- 2-3 years
- Size
- 3-4cm
- Temperature
- 5〜30℃
- Diet
- Medaka pellets, daphnia, brine shrimp
- Container
- Dark top-viewing container shows red and external light
- Lighting
- Kept outdoors in sunlight the red deepens further, and from above the body light becomes even more brilliant.
- Water Temperature & Quality
- Tolerates 5-30°C with 20-28°C ideal. Very hardy in neutral to slightly alkaline water and easy even for beginners.
- Diet & Feeding
- Feed medaka pellets as the staple with daphnia and brine shrimp. Color-enhancing feed containing carotenoids maintains the red.
- Breeding
- Breeding hikari x hikari improves light coverage
About Youkihi Hikari
Youkihi Hikari is a medaka variety prized for its shimmering silver-white back and vivid red-orange coloring, with a striking glowing orange hue when viewed from above. Beginner-friendly, typically living 2-3 years and reaching 3-4cm as an adult.
7 things to know before welcoming a Youkihi Hikari
1Shines Brightest From Above
The defining charm of Youkihi Hikari is its glowing body seen from above. It shows its best colors in outdoor tanks or water lily pots viewed from the top, especially when sunlight hits the water.
2Calm, Easygoing Temperament
This variety has a gentle temperament and mixes well with other medaka varieties. Its low aggression makes it easy to keep alongside multiple varieties in the same tank.
3Beginner-Friendly Care
Youkihi Hikari is considered beginner-friendly, and following basic water changes and feeding routines is usually enough to avoid major issues. It can be raised outdoors in a biotope or indoors in an aquarium.
4Lifespan of 2-3 Years
Expect a lifespan of around 2 to 3 years. Keeping water temperature and quality stable helps them stay healthy for longer.
5Adults Reach 3-4cm
Adults typically grow to about 3 to 4cm. Fish are often brought home as juveniles, with the glowing color becoming more distinct as they mature.
6Water Care Basics
They're sensitive to sudden temperature swings or declining water quality, so careful acclimation right after bringing them home matters. Regular water changes help maintain a clean, stable environment.
7Preparing Before You Bring Them Home
Set up your tank or biotope, filter, and food supplies before bringing your medaka home for a smoother transition. If housing them with other varieties, check compatibility in advance.
Frequently asked questions about Youkihi Hikari
- Q.What's the difference between Youkihi Hikari and standard Youkihi?
- A.Youkihi Hikari is the Hikari (glowing) body-type version of the Youkihi medaka. Unlike the standard Youkihi, it has a silvery-white glow along its back, making the shine especially striking when viewed from above.
- Q.Is this variety suitable for beginners?
- A.Yes, it's considered a beginner-friendly variety. Keeping up with basic water changes and feeding is usually enough to avoid major problems.
- Q.Should I keep them outdoors or indoors?
- A.Either works well. Outdoor biotopes or water lily pots let you enjoy the glowing color from above, while indoor aquariums work just as well.
- Q.Can they be kept with other medaka varieties?
- A.Their calm temperament makes them well-suited to mixed-variety tanks. Just be sure to acclimate new arrivals carefully and watch how they settle in.
- Q.How big do they get and how long do they live?
- A.Adults typically reach about 3 to 4cm and live around 2 to 3 years. Individual results can vary somewhat depending on care and environment.
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Care difficulty, lifespan, size and diet — all basics covered.
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