Ao Hikari (Blue Hikari)
Ao Hikari, or Blue Hikari, pairs a cool blue body with the Hikari type's signature metallic sheen along the back and belly, creating a silvery-blue glow that looks especially striking under natural outdoor sunlight. Its calm, sociable temperament makes it easy to keep alongside other medaka, and its beginner-friendly care requirements suit first-time keepers. Growing to about 3-4cm and typically living 2-3 years, it's a standard-sized medaka that brings a refreshing, ethereal shimmer to any water lily bowl or outdoor biotope.
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Ao Hikari (Blue Hikari) key facts
- Care level
- Beginner-friendly
- Lifespan
- 2-3 years
- Size
- 3-4cm
- Temperature
- 5〜30℃
- Diet
- Medaka pellets, daphnia
- Container
- Black top-viewing container enhances blue and external light
- Temperature
- 5-30°C (optimal 20-28°C)
- Sunlight
- Sunlight makes external light shine more beautifully
- Breeding
- Breed hikari pairs to maintain light intensity
- Notes
- Blue coloration may vary with temperature and environment
About Ao Hikari (Blue Hikari)
A blue-toned medaka with the Hikari type's metallic body glow, giving it a cool, silvery-blue shimmer that shines especially bright outdoors. Easy to keep, even for beginners.
7 things to know before welcoming a Ao Hikari (Blue Hikari)
1Shines Brightest Outdoors
The silvery-blue sheen of Ao Hikari develops its richest color under natural outdoor light. It thrives indoors too, but placing it in an outdoor water lily bowl or biotope in direct sunlight brings out its glow most vividly.
2Beginner-Friendly to Keep
Ao Hikari is considered an easy variety for beginners. As long as you avoid sudden swings in water temperature and quality, it stays healthy without any special equipment.
3Calm Nature, Good for Mixing
This variety has a calm, non-aggressive temperament, making it comfortable sharing a tank or lily bowl with other medaka. It also works well in mixed-variety medaka biotopes.
4Typical Lifespan of 2-3 Years
Ao Hikari typically lives around 2-3 years. How long it stays healthy depends on consistent care around water temperature, water quality, and seasonal changes.
5Grows to About 3-4cm
Adults typically reach about 3-4cm, a standard size for medaka. Growth speed can vary between individuals depending on water temperature and feeding amount.
6Glow Shifts With the Seasons
The way its body glow appears can shift subtly with temperature and daylight hours. During seasons with longer daylight, the shimmer tends to stand out more vividly.
7Acclimate Slowly Before Bringing Home
When introducing Ao Hikari to a new environment, gradual acclimation to avoid sudden changes in temperature and water quality is important. Prepare an acclimation container in advance rather than releasing them straight from the bag.
Frequently asked questions about Ao Hikari (Blue Hikari)
- Q.Does Ao Hikari still look vivid when kept indoors?
- A.It can be kept comfortably indoors, but its metallic body glow tends to appear most vivid under natural sunlight. If keeping it outdoors isn't an option, placing it near a sunny window can help bring out its shimmer.
- Q.Can Ao Hikari be kept with other medaka varieties?
- A.Yes, its calm temperament makes it well-suited to living alongside other medaka varieties. Just be sure to acclimate it carefully to avoid sudden changes in water quality.
- Q.How long does Ao Hikari typically live?
- A.It typically lives around 2-3 years. The actual lifespan can vary depending on water temperature management, water quality, and seasonal care.
- Q.How big does Ao Hikari grow as an adult?
- A.Adults typically reach about 3-4cm, a standard size for medaka. Growth speed can vary somewhat depending on the care environment and feeding.
- Q.Is Ao Hikari subject to CITES regulation?
- A.Ao Hikari is not subject to CITES. You can consider it based on its appeal and ease of care with peace of mind.
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