Sapphire
Sapphire is a medaka variety prized for its shimmering blue body overlaid with glitter scales, giving it a jewel-like brilliance reminiscent of its namesake gemstone. It's a relatively new variety, and the way its color catches the light is part of its charm. Like most medaka, Sapphire has a calm temperament and mixes well with other varieties. Bringing out its best blue tone takes some attention to water quality and light exposure, which is why it's generally rated for intermediate keepers. It typically lives 2 to 3 years and reaches about 3 to 4cm as an adult, making it a good fit for both indoor tanks and outdoor container ponds.
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- Body Type
- Scale Type
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Sapphire key facts
- Care level
- Intermediate
- Lifespan
- 2-3 years
- Size
- 3-4cm
- Diet
- Medaka pellets
- Container & Tank
- A black container brings out both the blue and the glitter most clearly. Provide a dark background for top or side viewing.
- Lighting
- Looks especially beautiful under blue-toned fluorescent or LED light. Side lighting shows the sparkle best.
- Water Temperature & Quality
- Adapts to 5-30°C and neutral to slightly alkaline water; easy to keep. Regular water changes keep it clean.
- Diet & Feeding
- Feed medaka pellets as the staple, in small amounts eaten within a few minutes so leftovers do not foul the water.
- Breeding & Egg-laying
- Fixation is somewhat low, so selection is needed. Pairing strongly blue fish with densely glittered fish maintains and improves quality.
- Notes
- Quality specimens expensive — buy from trusted breeders
About Sapphire
Sapphire is a relatively new medaka variety with a shimmering blue body and glitter scales. It lives 2-3 years, grows to 3-4cm, and suits intermediate-level keepers.
7 things to know before welcoming a Sapphire
1Color Depends on Environment
Sapphire's signature blue coloring is sensitive to water quality and light exposure, so its shine may be less vivid without the right setup. Outdoor keeping with moderate natural light tends to bring out the color best.
2Calm Temperament, Mixes Well
Sapphire has a calm temperament and generally gets along well with other medaka varieties. Still, avoid sudden temperature swings or overcrowding, as both can stress the fish.
3Water Care for Intermediate Keepers
This variety is rated for intermediate keepers, since keeping water quality stable takes some attention. First-time medaka owners may want to build basic keeping skills before bringing one home.
4Feed a Medaka-Specific Diet
A commercial medaka pellet or flake food is the standard diet. Feed small amounts a few times a day that can be finished within minutes, since overfeeding can quickly degrade water quality.
5Lifespan Around 2-3 Years
Sapphire medaka typically live around 2 to 3 years. Consistent water and temperature management through seasonal changes helps keep them healthy for that span.
6Compact at 3-4cm Full-Grown
Even fully grown, this variety stays compact at about 3 to 4cm. That makes it manageable in small containers or outdoor tubs, though stocking density should still match your water volume.
7Acclimate Before Introducing
When bringing a new fish home, float the bag in your tank or container to equalize temperature gradually and avoid shocking the fish. Since glitter scale patterning and blue tone vary between individuals, it's worth observing the actual fish before choosing.
Frequently asked questions about Sapphire
- Q.Does every Sapphire medaka show the same blue color?
- A.The intensity of the blue tone and glitter scale pattern varies between individuals, and appearance can also shift depending on lighting. Even siblings from the same parents can differ in coloring.
- Q.Is this variety suitable for beginners?
- A.Sapphire is generally considered better suited to intermediate keepers, so it helps to have some basic medaka-keeping experience first. Those already comfortable managing water quality should have no trouble.
- Q.Can it be kept with other medaka varieties?
- A.Yes, its calm temperament makes mixed-variety keeping possible. Just avoid overcrowding and keep the number of fish appropriate for your water volume.
- Q.What should I feed it?
- A.A standard medaka pellet or flake food works well. Feed small amounts a few times a day that can be eaten within minutes to prevent leftover food from fouling the water.
- Q.How long can I expect to keep it?
- A.Its typical lifespan is around 2 to 3 years. Consistent water quality and temperature management helps it stay healthy throughout that time.
Useful tools for Sapphire care
Learn more about Sapphire in the encyclopedia
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Care difficulty, lifespan, size and diet — all basics covered.
Sapphire related articles
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