black moor goldfish

Black Moor Goldfish: Care, Tank Mates & Tips

As an avid fish keeper, I am always on the lookout for unique and fascinating fish species to add to my collection. One such fish that caught my eye was the Black Moor Goldfish. With their stunning black color and unique physical features, these fish are a valuable addition to any aquarium. However, the care requirements for this species differ from other goldfish types, and it is essential to understand their needs thoroughly.

In this section, I will share my knowledge about Black Moor Goldfish care, tank mates and provide essential tips to ensure their health and well-being.

Table of Contents

Key Takeaways:

  • Black Moor Goldfish have unique physical features that make them stand out in any aquarium.
  • Caring for Black Moor Goldfish requires a specific set of conditions, including tank size, water parameters, and filtration.
  • Understanding their dietary needs and feeding habits is crucial for their health and well-being.
  • Common health issues that affect Black Moor Goldfish include eye problems and fungal infections. Learn how to identify and treat these conditions to ensure their recovery.
  • Choosing the right tank mates for Black Moor Goldfish is essential to ensure a harmonious aquarium environment.

Black Moor Goldfish Lifespan and Size

As a proud owner of Black Moor Goldfish, you must be curious about their lifespan and size potential. Well, you’ve come to the right place! The average lifespan of a Black Moor Goldfish is 10-15 years, although some have had their fish live for up to 20 years given the appropriate care.

In terms of size, Black Moor Goldfish can grow up to 6-8 inches in length. However, as with any breed of fish, the growth rate may vary based on factors such as the size of the tank and the quality of water. To ensure their growth potential is not restricted, provide them with a spacious tank and meet their dietary needs.

Remember, maintaining the appropriate environment and diet is crucial for Black Moor Goldfish to reach their full potential. Stay tuned for the next section where we will discuss the ideal tank requirements for Black Moor Goldfish!

Tank Requirements for Black Moor Goldfish

Creating a suitable habitat for your Black Moor Goldfish is essential for their health and happiness. Consider the following requirements to ensure their environment is suitable:

Water Parameters Black Moor Goldfish are adaptable to a range of water temperatures, but they prefer a cooler temperature ranging from 65°F to 72°F (18°C to 22°C). Keep the pH levels between 7.0 to 8.4 and maintain moderate water hardness between 5-19 dGH.
Tank Size Black Moor Goldfish can grow up to 6 inches (15 cm), so a minimum tank size of 20 gallons is required for a single fish. For a pair, a tank size of 30 gallons or more would be ideal.
Filtration Black Moor Goldfish produce a significant amount of waste, so good filtration is crucial. Use a filter that is capable of handling double the volume of water in the tank. Clean the filter regularly to ensure it functions correctly.
Decorations Black Moor Goldfish are not great swimmers, and they love to explore their surroundings. Adding some decorations, such as plants, rocks, caves, or driftwood, can provide a safe and stimulating environment for them to swim around and hide in. Just make sure that any decorations are smooth and free of sharp edges that could injure the fish.

Providing a suitable environment that incorporates these requirements will help ensure your Black Moor Goldfish lives a healthy and happy life.

Black Moor Goldfish Diet

If you want to keep your Black Moor Goldfish healthy and happy, it’s essential to provide them with a balanced and nutritious diet. These fish are omnivorous, meaning they eat both plant-based and meat-based foods.

Recommended Foods:

Food Type Frequency
Commercial Goldfish Flakes Once or Twice Daily
Frozen or Live Foods such as Brine Shrimp, Bloodworms, Daphnia and Mosquito Larvae Once or Twice Weekly (Replacing the Flakes)
Blanched or Boiled Vegetables (such as Peas, Zucchini, Lettuce and Spinach) Once or Twice Weekly (As a Supplement)

When feeding your Black Moor Goldfish, make sure to offer a variety of foods to ensure they receive all the essential nutrients they need. Avoid overfeeding them as this can lead to health problems and water pollution. Feed them only the amount they can eat in 2-3 minutes.

Note: Always buy commercial foods from trusted brands. It is imperative to inspect all foods before feeding them to prevent introducing diseases in their water.

black moor goldfish care

Interesting Facts About Black Moor Goldfish

Black Moor Goldfish are one of the most fascinating and unique varieties of goldfish. Here are some interesting and fun facts about these amazing creatures:

  • Origins: Black Moors were first bred in China, where they were considered a symbol of good luck.
  • Color Variations: While most Black Moors are black in color, they can also have white or gold markings. Some Black Moors even exhibit a rare “panda” coloration, with black and white patches resembling the famous bear.
  • Physical Characteristics: Black Moors have prominent, bulging eyes that can rotate and focus independently. They also have a double tail and a distinctive lack of dorsal fin, making them one of the more easily recognizable goldfish varieties.
  • Social Creatures: Black Moors are social animals and thrive when kept in groups of two or more. They are also known to interact with their owners and learn to recognize them over time.
  • Unique Behaviors: Black Moors are notorious for their love of digging and burrowing in the substrate of their tank. They are also avid scavengers, constantly searching for food and small objects to “play” with.
  • Longevity: With proper care, Black Moors can live for up to 20 years or more!

If you’re interested in learning more about Black Moor Goldfish, be sure to check out the other sections of this article for valuable care tips and more fascinating details about these amazing creatures!

Black Moor Goldfish Diseases and Health Issues

As with any pet, Black Moor Goldfish are prone to certain health issues that require attention. The most common health problems are eye problems and fungal infections, which can manifest in cloudy eyes and white fungus.

Eye problems: If you notice your black moor goldfish has cloudy eyes, it may be due to poor water quality or an injury. Perform a water test and change the water if the levels are not within the appropriate range, or consider adding an aquarium salt treatment to the water. If the cloudy eyes persist, consult a veterinarian or a certified aquatic specialist.

Fungal infections: Black Moor Goldfish can develop white fungus on their bodies, especially around wounds caused by biting or physical trauma. Keep the water clean, remove any injured or affected fish immediately from the tank and apply a fungal treatment recommended by a professional. Rinse and sanitize any items that came into contact with the infected fish to prevent further spread of the fungus.

It is important to note that prevention is key when it comes to health issues in Black Moor Goldfish. Ensure the water quality is appropriate, keep the tank clean, and feed them a balanced diet. If you notice any abnormalities in behavior or appearance, take action immediately to prevent more serious health problems.

Black Moor Goldfish Mating Behavior and Breeding

Black Moor Goldfish have a unique mating behavior that sets them apart from other types of fish. During the breeding season, the males will chase the females and nudge them towards plants and decorations. The eggs will then be laid on these surfaces, where they will attach themselves and hatch within a few days.

If you want to breed your Black Moor Goldfish, it’s essential to create the right conditions for them to spawn. The tank should have plenty of plants and hiding spots to simulate their natural habitat. The water temperature should be between 64-72°F, and the pH levels should be kept at neutral or slightly alkaline.

It’s important to note that breeding Black Moor Goldfish can be a challenging process and is not always successful. Factors such as genetics and overcrowded tanks can affect the breeding success rate. However, with careful planning and preparation, you can increase your chances of success.

Once the eggs have hatched, you will need to separate the fry from the adult fish to prevent them from getting eaten. The fry should be fed a diet of crushed flakes or baby brine shrimp until they are big enough to consume regular food.

Overall, Black Moor Goldfish breeding can be a challenging but rewarding process. By understanding their unique mating behavior and providing the right environment, you can witness the miracle of new life and contribute to the continuation of this beautiful fish species.

Male vs. Female Black Moor Goldfish

As a Black Moor Goldfish owner, it is essential to learn how to tell males and females apart. Interestingly, it can be challenging to distinguish between the two when they are still juvenile. However, as they mature, certain physical characteristics become more evident.

Males typically have smaller and more slender bodies with longer and pointier fins. They also develop white spots along their gill plates during breeding season, which are absent in females. On the other hand, females have rounder and fuller bodies with shorter, rounder fins.

Another way to differentiate them is through their behavior. During the breeding season, males tend to become more aggressive and territorial, chasing other fish away from their nests. Females, on the other hand, tend to become more passive and reticent.

Knowing the difference between male and female Black Moor Goldfish can be helpful when setting up a breeding tank or creating a mixed-gender aquarium, providing an appropriate environment for each fish’s behavior and needs.

Male and Female Black Moor Goldfish Comparison Table

Characteristic Male Black Moor Goldfish Female Black Moor Goldfish
Body Shape Small and Slender Round and Full
Fins Long and Pointy Short and Round
Gill Plate Spots Develop White Spots During Breeding Season No White Spots
Behavior During Breeding Season Become Aggressive and Territorial Become Passive and Reticent

Common Issues with Black Moor Goldfish

As an owner of Black Moor Goldfish, it can be disheartening when they keep dying. There are several potential causes of their frequent deaths. Some of the most common reasons are:

Reason for Black Moor Goldfish Deaths Symptoms
Poor water quality Frequent gasping at the water surface, lethargy, discolored gills, and fin rot
Overfeeding Cloudy water, unusual swimming behavior, and constipation
Incorrect water temperature Lethargy, poor appetite, and abnormal swimming behavior
Tank overcrowding Aggressive behavior, reduced appetite, and impaired growth
Genetic factors Underdeveloped or deformed body parts, poor health condition, and abnormal behavior

To prevent the frequent deaths of your Black Moor Goldfish, it is crucial to identify and address these potential causes. Maintaining clean and optimal water conditions, avoiding overfeeding, regulating the water temperature, providing enough space to swim and thrive, and selecting healthy specimens from reputable sources can help to minimize these issues.

Remember, caring for Black Moor Goldfish requires knowledge, commitment, and patience. Stay vigilant and take action proactively to ensure their well-being.

Types of Black Moor Goldfish

Black Moor Goldfish have been bred for centuries, resulting in a variety of unique types and color patterns. Here are some of the most popular types:

Type Description  
Normal The classic black moor goldfish with solid black color.  
Telescope A black moor goldfish with elongated eyes that protrude from its head.  
Ryukin A black moor goldfish with a dorsal fin that stands up like a sail.  
Bubble Eye A black moor goldfish with fluid-filled sacs under its eyes that resemble bubbles.  

In addition to the four types listed, there are also calico black moor goldfish which are a beautiful mix of orange, white, and black. One important note is that regardless of the type, all black moor goldfish have similar care requirements.

Compatibility of Black Moor Goldfish with Other Fish

Black Moor Goldfish are relatively peaceful and social fish that love to swim with their own kind. But what if you wanted to keep them with some other goldfish varieties? Oranda Goldfish, Fantail Goldfish and some other types can be compatible tank mates with Black Moor Goldfish if you follow a few guidelines:

Goldfish Variety Compatibility
Oranda Can live together peacefully. Oranda are a bit larger in size and enjoy similar tank setups as Black Moor Goldfish.
Fantail Can coexist peacefully, but caution needs to be taken regarding the tank size. As fantails can grow larger than Black Moor Goldfish, you need to provide a larger tank to prevent territorial conflicts.
Comet Goldfish The compatibility depends on the size and aggressiveness of the Comet Goldfish. As they can grow larger and more active than Black Moor Goldfish, you need to provide a larger tank and keep an eye on their behavior.

It is important to note that you should only keep goldfish with other fish species that have similar needs and requirements. Avoid keeping them with aggressive or territorial fish that may stress them out, leading to health issues. Additionally, never add new fish to an established tank without proper quarantine to avoid introducing diseases or parasites to your fish.

Choosing suitable tank mates for your Black Moor Goldfish requires careful consideration. By following the right guidelines, you can create a harmonious and peaceful environment for aquatic life.

Growth Rate of Black Moor Goldfish

Black Moor Goldfish is a slow-growing species, taking around two to three years to reach their maximum size. The growth rate of this fish is influenced by various factors, including genetics, diet, tank size, and water quality.

Generally, young black moor goldfish grow at a steady pace of approximately one inch per year. However, this growth rate may slow down as they age and reach their full size. The size of a fully grown black moor goldfish can range from four to ten inches, depending on factors such as genetics and living conditions.

It is essential to provide a suitable environment for the fish to grow and thrive. Ensuring adequate tank size, feeding a balanced and nutritious diet, and maintaining optimal water quality are crucial factors that can promote healthy and steady growth.

Overall, understanding the growth rate of black moor goldfish is vital for providing the appropriate care and environment for these aquatic pets. By monitoring their growth patterns, you can identify potential issues and take necessary steps to ensure their health and well-being.

How to Maintain Black Moor Goldfish Colors

Black Moor Goldfish are prized for their distinctive velvety black color and glistening scales. However, their color can fade or change over time due to various factors and improper care. Here are some tips to help maintain their striking appearance:

1. Provide a Suitable Environment: Ensure that the water in the tank is clean and stable with the right temperature, pH, and hardness levels. Avoid overcrowding and provide adequate lighting to enhance their natural color.

2. Avoid Stress: Black Moor Goldfish can lose their color or turn pale when they are stressed. Reduce stress by introducing compatible tank mates, maintaining the water quality, and avoiding sudden changes in the environment.

3. Feed a Balanced Diet: Proper nutrition is essential to maintain the color of Black Moor Goldfish. Offer a variety of high-quality foods, including flakes, pellets, and live or frozen treats, to provide necessary nutrients and enhance their natural color.

4. Enhance Their Diet: Adding natural enhancers, such as spirulina, carrot, or paprika, to their diet can boost their color naturally. These ingredients contain pigments that can enhance the black coloration of your fish.

black moor goldfish color change

5. Maintain Water Quality: Regular water changes and the use of quality filtration can help maintain color. Ensure that the water parameters are suitable, test the water at least weekly, and use water conditioners to remove chlorine and chloramine that can harm your fish.

6. Treat Health Issues Promptly: Diseases, parasites, or infections can cause discoloration or color loss in Black Moor Goldfish. Monitor your fish for signs of illness and seek treatment promptly if they show any symptoms.

By following these simple tips, you can maintain the vibrant colors of your Black Moor Goldfish and enjoy their beauty for years to come.


In conclusion, owning Black Moor Goldfish can be a rewarding and fascinating experience. By following the guidelines and tips provided in this article, I can ensure my Black Moor Goldfish will enjoy a healthy and happy life. From creating an ideal tank setup to feeding a nutritious diet and maintaining their vibrant colors, I am now equipped with the knowledge to provide the best care for my aquatic companions.

It is crucial to understand the various health issues that can affect Black Moor Goldfish and take prompt action to treat them. I am now aware of the common ailments and diseases that can impact my fish and know how to address them effectively. Additionally, selecting suitable tank mates is essential for their well-being, and I will carefully consider the compatibility of other fish before introducing them to the tank.

Overall, I have learned about the unique characteristics and traits of Black Moor Goldfish, their lifespan and growth potential, and different color variations. By providing the ideal environment, I can help my fish thrive and grow to their full potential. As a responsible owner, I will continue to educate myself about the needs of my aquatic friends and provide them with the best care possible.


What is the average lifespan of Black Moor Goldfish?

Black Moor Goldfish can live for up to 15 years with proper care and a suitable environment.

How big do Black Moor Goldfish grow?

Black Moor Goldfish can grow up to 6 inches in length, although some individuals may be smaller.

What are the tank requirements for Black Moor Goldfish?

Black Moor Goldfish require a tank with a minimum capacity of 20 gallons, proper filtration, and a temperature between 65-75°F.

What should I feed my Black Moor Goldfish?

Black Moor Goldfish have an omnivorous diet and can be fed a combination of commercial flakes or pellets, as well as fresh vegetables and live or frozen foods.

What are some interesting facts about Black Moor Goldfish?

Black Moor Goldfish are a variety of goldfish that have bulging eyes, a rounded body, and a velvety black color. They are known for their docile and friendly nature.

What are common health issues in Black Moor Goldfish?

Black Moor Goldfish are prone to eye problems such as cloudy eye and fungal infections. These conditions can be treated with appropriate medications and water quality maintenance.

How do Black Moor Goldfish mate and breed?

Black Moor Goldfish exhibit secretive breeding behavior, and successful breeding requires separate breeding tanks, appropriate water conditions, and controlled temperature fluctuations.

How can you differentiate between male and female Black Moor Goldfish?

Male Black Moor Goldfish tend to have smaller and more slender bodies compared to females. Males may also develop white breeding tubercles on their gill covers and pectoral fins during breeding season.

Why do Black Moor Goldfish keep dying?

Common causes of Black Moor Goldfish deaths include poor water quality, inadequate tank setup or care, and underlying health issues. Proper water maintenance and regular health checks can help prevent this.

What are the different types of Black Moor Goldfish?

Black Moor Goldfish come in various color variations, including solid black, calico, panda, and chocolate varieties.

Can Black Moor Goldfish live with other fish?

Black Moor Goldfish can coexist peacefully with other fancy goldfish varieties like Oranda and Fantail Goldfish, as long as there is adequate space and similar care requirements are met.

How fast do Black Moor Goldfish grow?

The growth rate of Black Moor Goldfish can vary, but they generally grow at a moderate pace. Factors like water quality, diet, and genetics can influence their growth potential.

How can I maintain the colors of my Black Moor Goldfish?

Maintaining the colors of Black Moor Goldfish requires a balanced diet, a clean and well-maintained tank environment, and avoiding stressors like poor water quality or aggression from tank mates.

What do black moor goldfish eat?

They enjoy a varied diet of goldfish flakes, pellets, vegetables, and occasional live or frozen foods like bloodworms.

How to sex black moor goldfish?

Sexing black moor goldfish can be challenging. Generally, males have slimmer bodies and more pronounced fins, and during breeding season may develop breeding tubercles on their gills and pectoral fins.

What temperature do black moor goldfish prefer?

Black moor goldfish thrive in water temperatures between 65-75 degrees Fahrenheit (18-24 degrees Celsius).

Which fish are compatible with black moor goldfish?

Compatible tank mates include other goldfish varieties, as well as peaceful, cold-water fish of similar size that do not compete aggressively for food.

How to breed black moor goldfish?

To breed black moor goldfish, you’ll need a separate breeding tank with optimal conditions and closely monitor the fish for spawning behavior, especially in the spring.

What do black moor goldfish eggs look like?

Their eggs are small, clear, and slightly sticky, allowing them to adhere to plants and other surfaces.

How to care for black moor goldfish?

Provide a clean, well-filtered tank with plenty of space, maintain stable water conditions, offer a balanced diet, and perform regular water changes.

How to determine the gender of a black moor goldfish?

Aside from the breeding season characteristics, the female is generally rounder and fuller-bodied, especially when viewed from above.

Why is my black moor goldfish sitting on the bottom of the tank?

This could indicate stress, poor water quality, or illness. Check your water parameters and ensure the tank is well-maintained.

What size tank is needed for black moor goldfish?

A minimum of 20-30 gallons is recommended for one black moor goldfish, with an additional 10-20 gallons for each additional fish.

How often should black moor goldfish be fed?

Feed your black moor goldfish two to three times daily, providing only as much food as they can consume in a couple of minutes.

Why is my black moor goldfish turning white?

This could be due to a lack of pigmentation, poor diet, or a response to changing water conditions. Ensure a varied diet and stable environment.

How to mend a female black moor goldfish’s tail?

If the tail is damaged, improve water quality and consider adding aquarium salt or using over-the-counter treatments to prevent infection.

Why do black moor goldfish change color?

Color changes can be due to genetic factors, age, diet, or variations in water quality.

What kind of gravel is suitable for black moor goldfish tanks?

Smooth, medium-sized gravel is ideal to prevent injury to the fish as they sift through the substrate.

What kind of water conditions do black moor goldfish require?

They need well-oxygenated, slightly acidic to neutral water (pH 6.5-7.5) with low to moderate hardness.

How much does a black moor goldfish cost?

Prices vary widely based on size and quality, ranging from a few dollars to over twenty dollars for specialty breeds.

How long does it take for a black moor goldfish to reach full size?

They can reach full size in about 2-3 years with proper nutrition and tank conditions.

Where to purchase black moor goldfish?

Black moor goldfish are commonly available at pet stores, aquarium specialty shops, and through online retailers.

How to identify if a black moor goldfish is male or female?

Apart from the breeding season signs, male black moors tend to have longer, more pointed fins and are generally smaller than females.

What other species can be kept with black moor goldfish?

Suitable tank mates include rubber lip plecos, white cloud mountain minnows, and other non-aggressive, cold-water fish.


Ornamental Aquatic Trade Association (OATA)

Goldfish Society of America

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