Bubble Eye Goldfish




As Goldfish, Bubble Eyes are from the Cyprinidae family. However, these are no ordinary Goldfish, they belong in a group known as Fancy Goldfish. Each variety of Fancy Goldfish has their own distinctive features and for Telescope Eyes, it’s their large telescopic eyes. You may see these fish called Telescopes because of this. Other names include Moors, Demekin, or Dragon Eyes.

Approx. size:20-25cm
Maximum size: 25cm
Origin: Asia
Ideal number kept together: 1+

Water conditions
pH: 6.5–7.8
Hardness: 300-800 ppm
Temperature: 16–24 °C

Ease of care

Goldfish are domesticated and selectively bred, so they don’t really have their own natural habitat anymore.

So when thinking about a Bubble Eye’s natural environment, it’s easier to consider the habitat of Asian Carps (which are their close relatives).

Asian Carps live in murky freshwater. They can be found in many different bodies of water, such as rivers, lakes, canals and reservoirs.

The water tends to be slow-moving with sand or dirt lining the bottom. pH would be relatively neutral and the temperature range could be broad. Black Moors enjoy similar conditions to Asian Carp, so creating this environment at home should keep them happy and healthy.


The food we recommend is Goldfish fish flake or pellet.


Bubble Eye Goldfish are peaceful fish that should not cause a problem for any of their tank mates. They are more on the timid side, so they don’t get along well with boisterous fish.

Their swimming speed is fairly slow, which is another reason why they need other peaceful species in the aquarium.

Most of their time is spent in the mid-levels of the water and sometimes they will hide away when stressed.

They enjoy being with their own kind and will often shoal when kept in groups.

Breeding / Sex

Bubble Eye Goldfish can easily be bred at home with a little know-how.

The lay eggs, just like all Goldfish. Spawning is triggered seasonally, so conditions in your tank need to replicate spring waters for breeding to start.

A rising temperature is the most important factor that changes as spring begins. Gradually raising the temperature of your tank is the key to starting everything off. Increase it 1°c a day.

Make sure the temperature remains in the recommended range though, aim for 24°c.

A male will begin courting by circling a female for a couple of days before they spawn. After spawning, up to 10,000 eggs could be produced and laid on surfaces around the tank.

Separate the fish from the eggs so that they don’t get eaten. The eggs will hatch in a few days time.

Feed the fry small foods that are high in iron and protein until they are large enough to eat an adult’s diet (at around two months old). At this point the parents can be re-introduced.

Life Span
20+ years