Source: Wikimedia Commons
Black Telescope
BeginnerThe representative black telescope breed. Beloved goldfish familiar from summer festival goldfish scooping.
Difficulty
Beginner
Temperature
5〜30℃（適温18〜24℃）
Lifespan
8-12 years
Size
10-18cm
Diet
Pellets, Bloodworms
About
The Black Moor (Kuro Demekin) is the most iconic variety of Telescope goldfish and one of the most familiar goldfish in Japan, where it appears regularly at traditional festival goldfish-scooping stalls. Its deep, velvety black coloration and dramatically protruding eyes give it an unmistakable, striking appearance. However, maintaining the intense black color is a notable challenge: with age, or in response to poor water quality and environmental stress, the coloration often fades to silver, bronze, or reddish tones. Clean water, appropriate lighting, and avoiding harsh direct sunlight help slow this fading. Like all Telescope varieties, the prominent eyes are fragile and require a hazard-free aquarium with no sharp decorations or rough substrate, and sponge-protected filter intakes. Black Moors are gentle, slow swimmers best kept with similarly paced varieties in tanks of at least 45 liters with neutral water quality.
Source: Wikipedia (CC BY-SA 4.0)
Basic Info
Origin
China
Lifespan
8-12 years
Size
10-18cm
Temperature
5〜30℃（適温18〜24℃）
Diet
Pellets, Bloodworms
Care Guide
Housing
Safe environment with few obstacles
Temperature
Stabilize at 18-25°C
Feeding
Sinking pellets to compensate poor eyesight
Notes
Some individuals turn red when grown
Black TelescopeJet-blackSummer festivalGoldfish scooping
Black Telescope FAQ
QHow difficult is it to keep Black Telescope?
A
Beginner. This is a beginner-friendly species. No special equipment or experience is required, and it can be kept successfully with basic care setup.
QWhat is the ideal temperature for Black Telescope?
A
The ideal temperature for Black Telescope is 5〜30℃（適温18〜24℃）. Avoid sudden temperature changes and maintain a stable environment.
QWhat is the lifespan of Black Telescope?
A
The average lifespan of Black Telescope is 8-12 years. With proper care and nutrition, they can live a long and healthy life.
QHow large does Black Telescope get?
A
Black Telescope typically reaches 10-18cm as an adult. Size may vary depending on care conditions and individual genetics.
QWhat should I feed Black Telescope?
A
Black Telescope feeds on: Pellets, Bloodworms. Aim for a balanced diet with appropriate feeding frequency.
QWhat is the typical price for Black Telescope?
A
The price of Black Telescope varies significantly depending on morph, size, and lineage. Check our market price page for the latest pricing information.
Black Telescope Q&A
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