Telescope Goldfish

The Telescope Goldfish, also known as the demekin or dragon-eye goldfish, is a popular fancy variety recognized by its egg-shaped body, long flowing fins, and distinct protruding eyes.

Key Overview & Appearance

• Eyes and Vision:
  Their large, bulging eyes extend outward from the skull, giving them an iconic look but resulting in very poor vision.

• Size and Lifespan:
  They typically grow to about 6 to 8 inches (15–20 cm) in body length and can live between 10 to 25 years with proper care.

• Popular Varieties:

  • Black Moor: A solid, velvety black variation.
  • Panda Telescope: A striking black-and-white patterned fish.
  • Butterfly Telescope: Features a wide caudal fin spreading a full 180 degrees, shaped like butterfly wings when viewed from above.
  • Other Colors: Calico, red, white, chocolate, blue, and bi-color variations.

Care Requirements

• Tank Size:
  Requires a minimum tank size of 40 US gallons (150 litres) for adequate swimming space and stable water chemistry.

• Tank Setup:
  Because their protruding eyes are fragile and prone to injury or bacterial infection, the aquarium must feature smooth, rounded decorations and soft substrate without any sharp or pointed edges.

• Water Parameters:
  Maintain a temperature between 50–72°F (10–22°C) and a pH level ranging from 6.0 to 8.0.

• Tank Mates:
  Best kept with other peaceful, slow-moving fancy goldfish. Avoid fast or aggressive species (like common goldfish or koi) that can outcompete them for food or nip at their delicate eyes.