Black Moor Goldfish: Care Guide, Tankmates & More

Two Black Moor Goldfish swimming together

It is no surprise that the Black Moor Goldfish is one of the famous fancy goldfish varieties in the aquarium community. The mystique of their appearance and peaceful behavior easily capture anyone’s attention.

This guide discusses everything you need to learn about Black Moors. Before you take home one, you should first know the nitty-gritty of taking care of these goldfish. So stick around because we got you covered!

Black Moor Goldfish Quick Facts

Other Names:Black Moor Goldfish, Black Moor, Black Demekin, Black Dragon Eye Goldfish
Unique Traits:Velvety black color, large telescopic eyes, flowing fins
Adult Size:5–8 in (13–20 cm)
Lifespan:10–15 years
Tank Size:Preferably, 20 gallons for one, plus 10 gallons for each additional fish
Temperature:65°F–75°F (18°C–24°C)
pH Level:6.5–7.5
Care Level:Easy
Breeding:Egg layer
Price Range:$10–$20
Recommended Tankmates:Other peaceful fish, fancy goldfish varieties, large shrimp species, snails, slow-swimming fish​

What Is a Black Moor Goldfish?

Black Moor Goldfish swimming above pebbles

The Black Moor is a type of telescope goldfish, a fancy variety of the common goldfish scientifically known as Carassius auratus. Black Moors are famous for their velvety black coloration, large, protruding eyes, and peaceful disposition.

Besides their aesthetics and calm behavior, these goldfish are also popular in the aquarium community because they are relatively easy to maintain and care for.

Unfortunately, their signature large telescope-like eyes affect their vision; hence, they require specific care and consideration in setting up their tank.

Black Moor Goldfish Origin and History

The Black Moor has a rich history that traces back to centuries of selective breeding. Their black coloration and protruding eyes were genetic mutations purposely bred to produce a new variety of goldfish.

These efforts have spanned centuries, with notable development occurring in China hundreds of years before the variety became popular in Japan, Europe, and America.

Black Moors are considered a variety of telescope goldfish, including celestial eyes and panda goldfish, which were developed in the early 1700s.

Interestingly, selective breeding of goldfish has been prevalent in China for thousands of years, giving us the numerous varieties of fancy goldfish we now have.

Black Moor Goldfish Appearance

Black Moor Goldfish with shimmering scales

Black Moors are easily identified by their black metallic scales and large, protruding eyes. They have an egg-shaped body and long, flowing fins and tails that can be broad, veiled, or tripod.

Typically, young Black Moors are born with gold or bronze coloration, which turns velvety black as they mature. These hardy goldfish can grow from 5 to 8 inches long.

Adults are expected to exhibit a full black body, including their fins and tail, with hints of bronze or orange on the sides of their stomachs.

However, contrary to popular belief, not all Black Moors remain black throughout their lives. Some transition to a bronze or orange color as they mature due to aging and environmental factors.

As a type of telescope goldfish, Black Moors have two different eye varieties. They can have conical eyes that protrude like smooth cones when viewed from above.

On the other hand, they can also carry balloon-type eyes, which seem like tiny sacs attached to the goldfish’s cheeks.

Fun Fact: Baby Black Moors don’t develop their distinctive telescope eyes until they are three months old. 

Initially, their eyes are similar to those of other goldfish varieties, and as they grow, their eyes gradually protrude and take on the characteristic bulging appearance.

Black Moor Goldfish Temperament and Behavior

Black Moor Goldfish are peaceful and friendly, ideal for community tanks with similarly gentle fish. They prefer the company of other slow-moving fish that won’t outcompete them for food.

Due to their unique eye structure, they have limited vision and might not easily find food when housed with faster fish​.

They also prefer mid-level swimming and may seek shelter among tank decorations or plants if they feel stressed or need privacy. They are most active during the daytime.

One thing to be wary of, though, is their tendency to nip the tails and fins of other goldfish.

Black Moor Goldfish Care Guide

Black Moor Goldfish duo amidst greenery

Black Moors are not only loved by many aquarists due to their unique looks and peaceful personality but also for their relatively minimal care requirements. They are considered beginner-friendly pets.

Diet and Feeding

Black Moor Goldfish are omnivorous, requiring a mix of plant-based foods and proteins.

High-quality pellets or flakes should form the base of their diet, supplemented with vegetables like peas and zucchini, which can prevent digestive issues.

Introducing live or frozen foods, such as brine shrimp and bloodworms, can add variety and essential nutrients.

However, moderation is key — overfeeding can lead to obesity and swim bladder problems. Aim for small, frequent meals, allowing your fish to consume all food within a few minutes.

One thing I noticed when feeding Black Moors is that they have difficulties accessing their food, especially food suspended on the surface, due to their poor vision.

This is why I opt for sinking pellets, which are easier for Black Moors to find. I also ensure that the vegetables I feed them are blanched and soft enough for them to nibble.

Tank Size

A spacious environment is vital for the well-being of your Black Moor Goldfish. Starting with a minimum tank size of 20 gallons for a single fish provides them with enough room to swim freely and thrive.

If you plan to introduce more fish, increase the tank size accordingly, adding an extra 10 gallons per additional fish. This not only prevents overcrowding but also aids in managing water quality by diluting toxins more effectively.

Water Parameters

Black Moor Goldfish are hardy but prefer stable water conditions with temperatures ranging from 65°F to 75°F and a pH of 6.5 to 7.5.

Close monitoring and adjustments are necessary to maintain these parameters, as fluctuations can stress or harm your fish. You should also ensure you have a reliable water thermometer and testing kit.

Filtration and Heater

A good filtration system is essential due to the high waste output of Black Moor Goldfish.

Opt for filters that can cycle the tank’s water volume at least four times per hour and include mechanical and biological filtration media.

Nevertheless, ensure that the filter does not create a strong current since Black Moors are not good swimmers and have poor eyesight.

You can also add live plants, such as Anubias, Java Fern, and Hornwort, as natural filters in the tank.

Meanwhile, although Black Moors can adapt to a wide range of temperatures, using a heater to maintain consistent water conditions can prevent stress from temperature fluctuations.

Tank Maintenance

For my tank maintenance, I replace 25% of the tank water once every two weeks for water changes. This prevents the disruption of the natural nitrogen cycle, which could harm fish.

Additionally, I also clean the substrate with an aquarium vacuum and remove algae buildup on tank surfaces to ensure a clean environment for my Black Moors.

Additionally, it is best to regularly inspect, clean the filter, and check for equipment malfunctions to keep the tank’s ecosystem balanced and thriving.

Tankmates for Black Moor Goldfish

When looking for tank mates for Black Moor Goldfish, it’s essential to choose peaceful, slow-moving fish that won’t outcompete them for food or cause stress.

Good companions include other fancy goldfish varieties, such as Oranda Goldfish and Celestial Eyes, which share similar water and dietary needs without posing a threat due to aggression or faster swimming speeds​​​​.

Zebra Danios, known for their hardy nature and adaptability to various conditions, can coexist well with Black Moors, provided there’s enough space and no competition for food​​​​.

Bottom dwellers like Corydoras Catfish, Kuhli Loaches, and some species of plecos are excellent choices since they occupy different tank levels, reducing the chance of direct competition that could stress your Moor.

These species also help maintain tank cleanliness by feeding on detritus and algae without disturbing the Black Moor​​​​.

For invertebrates, snails, such as Nerite and Mystery Snails, and shrimps, like Amano and Ghost Shrimps, are also compatible with Black Moors.

As a general rule, though, do not include species small enough to fit into the mouth of your Black Moor, lest they become quick snacks.

To ensure a harmonious tank environment, always consider the needs and behaviors of potential tank mates, including water temperature preferences and activity levels.

Black Moor Goldfish Lifespan and Diseases

Black Moor Goldfish with transparent fins

Black Moor Goldfish are known for their longevity. In the right conditions, they can live between 10 and 15 years. But like all living creatures, these goldfish can also face health challenges.

Here are some of the common diseases of Black Moor Goldfish:

  • Eye Injuries and Cloudy Eye: Due to their protruding eyes, Black Moors are particularly susceptible to eye injuries from sharp objects in the tank or cloudy eyes resulting from poor water quality or infections.
  • Ich (Icthyophthrius multifiliis): This fish disease is characterized by white, salt-like dots on the fish’s body, fins, and gills. It is often accompanied by itching and breathing difficulties. Ich is treatable with increased water temperature and aquarium salt.
  • Fin Rot: This condition manifests as cloudy spots on the fins, progressing to fin decay. It’s usually caused by poor water quality or stress and is treatable with antibiotics and hydrogen peroxide swabs.
  • Swim Bladder Disease: Goldfish species are susceptible to this disease. Symptoms include difficulty swimming, floating towards the surface, or sinking. It’s often related to diet and can be managed with dietary adjustments and proper treatment.
  • Dropsy: A Black Moor with dropsy may have an enlarged belly and scales that protrude away from the body. Dropsy is a symptom of internal disease rather than a disease itself.

To prevent these diseases, maintain a clean tank, avoid sharp decorations, provide a balanced diet, and observe your fish regularly for early signs of illness.

Regular water changes and a suitable filtration system are also essential to keep the water parameters within the ideal range for Black Moor Goldfish.

Breeding Black Moor Goldfish

Adjusting your aquarium’s conditions is key to kickstarting the breeding process.

Elevate the water temperature to encourage spawning behaviors, aiming for a comfortable range between 65°F and 75°F that mimics the warmth of the spring season.

An environment rich in plants replicates the natural habitats these fish would seek to lay eggs. You can also use spawning mops in place of live plants.

Identifying ready-to-breed males is easy. They display distinctive white spots on their gill covers and fins, signaling their sexual maturity. You may notice males chasing after females when they are ready to spawn.

Upon successful mating, females deposit hundreds of eggs sticking to the tank’s plants or other surfaces.

Post-spawning, the crucial step is to prevent potential cannibalism. Relocating the eggs or adults to a separate tank is advised.

The fertilized eggs should hatch within a week. You can feed the goldfish fry with boiled egg yolks, brine shrimp, or powdered fish food.

After two months, the fry can be moved to a separate tank and fed with adult fish food until they are big enough to join your community tank.

How Much Does a Black Moor Goldfish Cost?

Side profile of Black Moor Goldfish

The cost of a Black Moor Goldfish typically ranges from $10 to $20, influenced by factors such as size, quality, and purchase location. Pet stores usually sell them at a lower price than specialized fish farms.

Local fish stores are a common starting point for purchasing Black Moor Goldfish, as a selection of these fish is readily available.

Online retailers such as LiveAquaria and Petco provide a convenient alternative, offering a wide range of options that cater to different preferences and requirements.

Other Varieties of Goldfish

Goldfish varieties have blossomed due to centuries of selective breeding, beginning in ancient China. This practice began over a thousand years ago and was initially focused on developing goldfish with vibrant colors.

Over centuries, this selective breeding evolved beyond color to include diverse body shapes, fin styles, and unique features, leading to the wide variety of goldfish we see today.

Here’s a list of some notable goldfish varieties:

  • Watonai
  • Jikin
  • Fantail
  • Veiltail
  • Ryukin
  • Pearlscale
  • Telescope
  • Oranda
  • Curled-gill
  • Tosakin
  • Butterfly Tail
  • Meteor
  • Egg-fish
  • Izumo Nankin
  • Pompom
  • Lionhead
  • Ranchu
  • Celestial Eye
  • Bubble Eye
  • Common Goldfish
  • Comet
  • Nymph
  • Shubunkin Goldfish
  • Wakin
  • Japanese Ryukin
  • Fancy Fantail

Each variety has unique characteristics, such as body shape, fin configuration, coloration, and eye shape. Moreover, each type also has specific needs and care requirements.

Frequently Asked Questions

Black Moor Goldfish swimming in a dark blue aquarium

Why Do My Black Moor Goldfish Turn Gold?

The transformation of a Black Moor Goldfish from black to gold, bronze, or orange is primarily a natural part of its aging process.

Their color changes as they age, from bronze or orange in their youth to black and then gradually to gold, bronze, or orange. This change is common and generally not a cause for concern.

Can Black Moor Goldfish Live With Other Fish?

Black Moor Goldfish can live with other fish, particularly those that are peaceful and won’t compete aggressively for food or space. These fancy goldfish are known for their calm disposition.

Can You Put Black Moor Goldfish in a Pond?

Yes, Black Moor Goldfish can live in a pond. However, it’s essential that the pond maintains a basic pH, has moderate water flow, and keeps an optimal temperature.

Can Black Moor Goldfish Live With Koi?

Black Moor Goldfish can live with koi in the same pond, but it is not ideal due to differences in their sizes and swimming capabilities.

Koi are larger and more powerful, which could lead to competition during feeding times. Fancy goldfish like Black Moors might struggle to compete for food because of their slower swimming.

Koi aren’t naturally aggressive, but their size and active behavior could unintentionally harm smaller or slower-moving goldfish​.

Do Black Moor Goldfish Eat Snails?

Like other goldfish varieties, Black Moors are known to eat small snails that can fit in their mouths, including baby snails of any type.

However, they typically do not bother larger snails, such as Nerite Snails, Mystery Snails, and Japanese Trapdoor Snails, which can live safely with goldfish due to their size.

Black Moors can be a great addition to community tanks simply because of their fancy appearance and calm nature. Plus, they are easy to care for! What do you like best about these goldfish? Let us know in the comments.

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