
Source: Wikimedia Commons
A telescope eye goldfish with butterfly-wing spread tail. Top-view tail shape is main viewing point.
The Telescope Butterfly (Butterfly Tail Demekin) pairs the Telescope goldfish's large, protruding eyes with the distinctive butterfly-spread tail fin, creating a uniquely striking variety best appreciated from directly above. The tail spreads horizontally and curves upward at the edges, forming an elegant butterfly wing silhouette in top view. Shallow tanks or basins designed for overhead observation are strongly preferred for this breed. Black individuals, sometimes called Black Butterfly Demekin, are among the most popular variants, alongside calico, panda (black-and-white), and sarasa forms. Like all Telescope varieties, the prominent eyes are fragile—sharp aquarium decorations and abrasive substrates must be avoided, and filter intakes require sponge protection. Butterfly Telescope goldfish are docile and slow-swimming, requiring similarly paced tankmates and stable water conditions at 18–25°C.
Origin
China
Lifespan
8-12 years
Size
10-18cm
Temperature
5〜30℃(適温18〜24℃)
Pellets, Bloodworms
Shallow containers best for top-view beauty
Optimal at 18-25°C
Sinking feed due to poor eyesight
Protruding eyes, watch for obstacles
Intermediate. This is an intermediate-level species. Some prior experience and knowledge of environmental management are recommended.
The ideal temperature for Butterfly Telescope is 5〜30℃(適温18〜24℃). Avoid sudden temperature changes and maintain a stable environment.
The average lifespan of Butterfly Telescope is 8-12 years. With proper care and nutrition, they can live a long and healthy life.
Butterfly Telescope typically reaches 10-18cm as an adult. Size may vary depending on care conditions and individual genetics.
Butterfly Telescope feeds on: Pellets, Bloodworms. Aim for a balanced diet with appropriate feeding frequency.
The price of Butterfly Telescope varies significantly depending on morph, size, and lineage. Check our market price page for the latest pricing information.
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