What's the difference between Seibungyo and the black telescope goldfish?

Both belong to the telescope-eye goldfish family, but while the black telescope goldfish is a near-pure black, the Seibungyo has a blue-tinted black that shows a deeper blue-black sheen depending on the light. There's no major difference in body shape or care requirements between the two.

Can beginners keep this fish?

Seibungyo care is generally considered suited to intermediate keepers. It helps to have basic goldfish-keeping knowledge, such as water changes and water quality management, before bringing one home.

Adults typically reach around 10 to 18cm. It's a good idea to prepare a tank sized for their eventual adult size, not just how big they are when you bring them home.

How long do they live?

Seibungyo generally live around 8 to 12 years. That's relatively long for a goldfish variety, so it's worth setting up an environment you can maintain over the long term.

Is it okay to keep them with other fish?

Because telescope-eye goldfish like the Seibungyo aren't strong swimmers, keeping them with faster fish can mean they lose out on food or get their fins and eyes nipped. Tankmates that swim at a similarly relaxed pace, such as other telescope-eye varieties, are a better match.

Seibungyo (Blue Oranda)

Seibungyo, or Blue Oranda, is a Chinese goldfish variety in the telescope-eye (Demekin) family. Unlike the black telescope goldfish, it has a distinctive blue-black sheen with real depth to its color, giving it a refined look you won't find in other goldfish. Its slow, graceful swimming style makes it a calming fish to watch. Because of its unusual coloring, it has a devoted following among hobbyists in Japan. This variety is generally considered suitable for intermediate keepers, so it helps to have some basic goldfish-keeping experience with water quality and feeding before bringing one home.

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Seibungyo (Blue Oranda) key facts

Care level: Intermediate
Lifespan: 8-12 years
Size: 10-18cm
Temperature: 15〜28℃
Diet: Omnivore (pellets, bloodworms, daphnia)
Container & Tank: Use a tank of 60L or more and keep the water clean with regular changes. A calm environment helps preserve the blue-black sheen.
Water Temperature & Quality: Keep the water within 15-28°C, ideally 18-23°C. Blue coloring changes easily with growth and environment, so keep conditions stable.
Diet & Feeding: An omnivore, feed pellets as the staple with bloodworms and daphnia for balance.
Tank Mates & Compatibility: A calm swimmer, it does best with other gentle varieties and should not be mixed with active ones.
Eye Care: Create obstacle-free environment for protruding eyes
Notes: Water quality management is key for maintaining blue coloration

TraitsTelescopeBlue-blackChinese originRare

About Seibungyo (Blue Oranda)

Seibungyo (Blue Oranda) is a Chinese goldfish variety with a striking blue-black sheen. Lifespan is 8-12 years, adult size 10-18cm, and it's best suited to intermediate keepers.

7 things to know before welcoming a Seibungyo (Blue Oranda)

1Water Quality Basics
As a telescope-eye goldfish, Seibungyo can be sensitive to poor water quality and sudden temperature swings because of its protruding eyes. Regular water changes and consistent filter maintenance help keep the environment stable.
2Choose Calm Tankmates
Because their protruding eyes make swimming less agile, telescope-eye goldfish like the Seibungyo can lose out on food or get their fins and eyes nipped when kept with faster-swimming goldfish. Pairing them with similarly slow-moving varieties, such as other telescope-eyes or ryukin, is a safer choice.
3Best for Intermediate Keepers
Seibungyo care is generally considered suitable for intermediate keepers. Having some basic goldfish-keeping experience, such as a feel for water change cycles and testing, makes it easier to notice changes in their condition early.
4A Long-Lived Companion
Seibungyo typically live around 8 to 12 years, making them one of the longer-lived goldfish varieties. It's worth planning for the tank space and ongoing care commitment this longevity requires.
5Grows Up to 18cm
Adult Seibungyo reach roughly 10 to 18cm in length. Even if yours is small when you bring it home, plan your tank size and filtration capacity around its eventual adult size.
6The Appeal of Blue-Black Color
The Seibungyo's biggest draw is its blue-tinted black coloring. It resembles the black telescope goldfish, but catches light with a deeper blue-black sheen, so its appearance can shift subtly depending on lighting and viewing angle.
7Protecting Their Eyes
Because their eyes protrude, Seibungyo can injure them on sharp decorations or rough tank layout materials. Use smooth, rounded decor and check their eyes regularly for signs of damage.

Frequently asked questions about Seibungyo (Blue Oranda)

Q.What's the difference between Seibungyo and the black telescope goldfish?: A.Both belong to the telescope-eye goldfish family, but while the black telescope goldfish is a near-pure black, the Seibungyo has a blue-tinted black that shows a deeper blue-black sheen depending on the light. There's no major difference in body shape or care requirements between the two.
Q.Can beginners keep this fish?: A.Seibungyo care is generally considered suited to intermediate keepers. It helps to have basic goldfish-keeping knowledge, such as water changes and water quality management, before bringing one home.
Q.How big do they get?: A.Adults typically reach around 10 to 18cm. It's a good idea to prepare a tank sized for their eventual adult size, not just how big they are when you bring them home.
Q.How long do they live?: A.Seibungyo generally live around 8 to 12 years. That's relatively long for a goldfish variety, so it's worth setting up an environment you can maintain over the long term.
Q.Is it okay to keep them with other fish?: A.Because telescope-eye goldfish like the Seibungyo aren't strong swimmers, keeping them with faster fish can mean they lose out on food or get their fins and eyes nipped. Tankmates that swim at a similarly relaxed pace, such as other telescope-eye varieties, are a better match.