May 23

Sarah Robertson

Common Goldfish – the Easiest Breed of Fancy Goldfish

Fishkeeping has become a popular hobby all over the world, and common goldfish are one of the most commonly kept pets. They come in a wide variety of shapes, sizes, and colors, and they're relatively easy to care for compared to other pets.

Even though there are many varieties of goldfish available, common goldfish is one of the most preferred ones among them all. If you're thinking about getting a pet goldfish, there are a few things you should know about their care and growth. In this article, we'll cover everything you need to know about Common Goldfish care, including feeding, tank size, lifespan, and more.

What Is a Common Goldfish?

These are one of the oldest as well as one of the most favored pet fish. The common goldfish is a breed of goldfish that has no distinguishable variations from its wild forebear, the Prussian carp, other than color and form. The common goldfish is one of the simplest breeds of fancy goldfish to produce.

They are available in a number of colors, including red, orange, red and white, white and black, yellow and white, blue, yellow, and white. However, the most popular common goldfish colors are orange and golden yellow. Sometimes, the brightness, duration, and vividness of the color may be an indication of the fish's health status.


The appearance of a goldfish is one of the things that make them so popular. They can be found in a wide variety of shapes and colors, including orange, white, black, yellow, and red.

A common goldfish has two pairs of paired fins and three individual ones. They lack barbels, which are sensory organs used by other fish that function like taste buds.

They also lack scales on their heads. They don't have teeth, and instead of chewing their food in their mouth, they crush it in their throats. The fish are famed for having huge eyes and excellent sense of smell and hearing. Their capacity to hear is aided by tiny bones near their head that connect the swim bladder with their inner ear.

Differentiating the Gender

There are many reasons why you want to know the gender of your fish. If you have a common goldfish male or female, they will eventually mate and you’ll end up with baby goldfish.

Before you can get to that point, you need to be able to tell them apart. However, it is critical to note that the gender distinctions can only be recognized after the fish has matured, which is usually a year. So, how to tell the gender of a common goldfish?

The following are the main ways to tell male and female goldfish apart:

  • The most obvious difference between male and female goldfish is their size. Female goldfish have a rounder, thicker body form than males of the same age and species, as well as a deeper body shape that makes it easier to tell sex from a side perspective.
  • Look for a protruding vent. The female goldfish's vent anal opening is rounder than the males' and slowly pushes out of the body as breeding season approaches. The vent may appear raised on the belly of a female when viewed from the side.

  • Male goldfish have more flowing fins and tails than females. Males also have a thicker pectoral fin and one that is generally longer and more pointed. The dorsal fin is usually taller and sharper in males, as well.

  • The rear edge of the pelvic fins, down to and including the vent's opening, is often more noticeable in males and is smaller or non-existent in females.


Goldfish are one of the oldest domesticated fish species in history. They have a long and rich history, going back over 1000 years to when they were first domesticated in China.

Native to East Asia, the Common goldfish is a tiny member of the Prussian carp family that was developed for its color and other physical characteristics. There are now dozens of distinct goldfish strains to choose from, including Comets, Shubunkins, Fantails, and more. They were bred and tamed, and over time, they became popular pets all over the world, including in Europe and North America.

Common Goldfish Lifespan

Common Goldfish Lifespan

In the proper conditions, goldfish may live a long time. There is no definitive maximum life span for goldfish because it varies depending on the many types. However, the average age of a goldfish is 10-15 years, although certain goldfish have been documented to live longer.

Common Goldfish Size

So, how big do common goldfish get? Common goldfish can grow to be quite large, reaching up to the adult size of 18 inches in length. The fish’s size is usually constrained by the size of its tank. But with enough food, proper water temperatures, and ample room to roam, goldfish can balloon.


Common Goldfish are sociable creatures who enjoy being in groups. They may communicate with any fish that belongs to the same species. Tameability is possible for common goldfish provided that they receive suitable care and attention. During feeding time, when approaching its owner's face can be observed, and hand-feeding becomes feasible.

Small goldfish are afraid of humans and will avoid any contact with them. In a middle-sized or mature goldfish, though, this dread subsides. A full-grown goldfish is more likely to accept food straight from its owner's hands without showing signs of hesitation.

However, while this is a favorite activity of goldfish owners, it caused problems in outdoor ponds since predators may eat such amiable meals. Mature goldfish will also engage in nibbling or grazing behavior to explore their environment.

A common goldfish, on the other hand, would engage in this behavior if placed into a tank with fellow goldfish. By rubbing against the bodies of other fish, it would attempt to communicate and get acquainted with its new tank mates.

The most common introductory gesture would be swimming side by side with another goldfish, with either its head facing forward or in the opposite direction. You could also swim above another goldfish in a perpendicular fashion. When a new fish is introduced into the tank, schooling is an inevitable reaction.

This schooling behavior will eventually come to an end after some time, and every fish in the tank will begin swimming and exploring on its own. When a new specimen is added to a well-established school of goldfish, aggressive behavior is unusual.

During feeding, a hierarchy is frequently observed in which the larger goldfish receives most of the food. Small goldfish can, nevertheless, become aggressive or competitive feeders despite the presence of bigger fish, which is generally considered a positive sign since it indicates a healthy goldfish's desire to eat.

Common Goldfish Habitat Set-up

Setting up a proper home for your goldfish is essential to keeping them healthy and happy. It is common practice to keep common goldfish in a small bowl, but this allows waste in the water to build up to toxic levels and does not provide enough oxygen.

Goldfish are not territorial by nature. However, if an aquarium is already too small for one goldfish, it will be intolerably crowded with two or more. This can cause stress in the fish, which is not good for their health.

A decent filter with no heater is recommended to keep the tank water clean and cold.  This will also prevent ammonia levels to go high in the water. A water pump, such as a fountain pump or a tiny pond pump, can be utilized to pull the CO2 water from the bottom and expel it, allowing for more aeration of the tank or pond. Goldfish will die if there isn't enough oxygen in the water, so it is essential to have a way to aerate the water if you are keeping them in a bowl or small tank.

The ideal common goldfish temperature is 65-75 degrees Fahrenheit, but it can also withstand temperatures as low as 50 degrees and as high as 80 degrees for short periods of time. The PH level should be between 6.5 and 7.5, and the water should be soft to medium hardness.

Tips for Performing a Water Change

Even after setting the biological filter and water conditioner, it is necessary to change at least 20% of the water every week or as required to avoid a build-up of hazardous nitrate.

The use of live aquatic plants may help to reduce the number of times each month that water changes must be done. This is because aquatic plants consume nitrate as a nutrient, which helps to keep nitrate levels low.

Even though it is recommended to keep the tank clean, never perform a 90% frequent water change; the remaining 10% of the water will aid in maintaining the water cycle while the remaining beneficial bacteria will come back quickly.

It's a good idea not to clean the filters at the same time (filters have a lot of good stuff as well), but instead to wait two days after a water change before cleaning them, in order to maintain a healthy balance.

Common Goldfish Pond Setup

Common Goldfish Pond Setup

These amazing fish may be maintained in water gardens or outdoor ponds all year. Outdoor ponds have comparable maintenance demands to indoor tanks, with a few notable exceptions including the amount of sunshine and natural and man-made environment pollution, such as dead leaves, debris, runoff, algae, and selection of pond mates i.e. algae eaters frogs, etc.

Outdoor ponds develop into tiny aquatic ecosystems, attracting a variety of animals and plants. In warm climates, pond temperatures must not rise to hazardous levels, as this will certainly kill the fish. In the winter, fish may become sluggish and stop feeding. This does not signify they are ill; rather, their metabolism has slowed. The pond should not completely freeze over, and there should be an open area for the fish to access air.

Habitat Decor 

Goldfish are inquisitive fish that get bored easily if they aren't given things to do or other fish to play with. When goldfish are put into an empty aquarium, they will typically settle on the bottom and only move when fed or startled by strong twangs.

Proving a lot of hiding places in the form of caves, plants (plastic plants or real plants), or even upturned flowerpots will help your goldfish feel secure and also look after their delicate fins. However, when adding decorations to your goldfish tank or pond, avoid anything that could potentially tear their fins or scales. Be sure to smooth any sharp edges on rocks or other items in the tank.

Artificial plants can be added, but real plants are always best. They help to keep the water quality high and provide a place for the fish to hide. Goldfish will eat live plants, so be sure to choose plants that are not on your pet goldfish menu or are too tough for them to nibble. Some good choices include water lilies, hornwort, and java fern.

Common Goldfish Tank Mates

Although goldfish are popular in the fishkeeping hobby, it's good to shake things up every now and then. Adding a few tank mates can do just that. Be sure to do your research when selecting fish to add to your goldfish tank as some fish are not compatible and will quickly become lunch. So, what fish can live with common goldfish?

Here are a few examples of good tank mates for goldfish:

  • Hillstream Loach- The bizarre fish resembles a stingray and acts like a pleco. It eats algae, scoops for food scraps, and holds on to the glass so tightly that goldfish can't pluck them off. They also enjoy temperatures similar to those of goldfish. The reticulated hill stream loach and Borneo sucker loach are just a few of the flat-bodied loaches that fall into this group.

  • Cory catfish- These little armored catfish are peaceful bottom dwellers that do an excellent job of cleaning up leftover food and detritus. They prefer to be kept in groups and do best with goldfish that won't nip at their fins. Popular species include the bronze Corydoras, peppered Corydoras, and albino Corydoras.

  • Bristlenose Pleco- the Bristlenose pleco is another excellent goldfish tank mate. It's a suckerfish that spends most of its time attached to glass and rocks, eating algae. These plecos grow to be about 6 inches (15 cm), so they'll need a fairly large tank.

  • White Cloud Mountain Minnows- These small, peaceful fish are excellent goldfish tank mates. They prefer cooler water temperatures and may not do well if the water in your tank is too warm. White Cloud Mountain minnows are active swimmers and make a great addition to a goldfish tank.

  • Rice fish-The amazing rice fish, like the white cloud minnows, are one of a kind. This chilly water family has many species and color variants, such as platinum white, orange, and blue. Keep in mind that they will contribute to the aquarium's total bio load and waste load, so be sure you have adequate tank space for both the goldfish and any tank mates you want to bring.

  • Variatus Platy- the Variatus platy is a good choice for a goldfish tank mate. It's an active swimmer that prefers to stay near the surface of the tank. These fish are easy to care for and make a great addition to a goldfish tank.

  • Long Fin Rosy Barbs- Long fin rosy barbs are another good choice for a goldfish tank mate. They're active fish that loves to stay near the surface of the tank. These fish are easy to care for and make a great addition to a goldfish tank.

How to Choose the Right Tank Mate for Your Goldfish

How to Choose the Right Tank Mate for Your Goldfish

When choosing a tank mate for your goldfish, there are a few things you'll need to consider. The following factors will help you choose the right fish for your goldfish tank:

  • Avoid aggressive fish that will pick on your goldfish. Goldfish are peaceful creatures that get along with other calm fish in general. However, there are exceptions to every rule, and certain belligerent fish can live alongside goldfish.
  • Consider how fast your goldfish is. Common goldfish (also known as single-tailed or comet goldfish) are very fast swimmers and have a higher likelihood of swallowing things they shouldn’t. Fancy goldfish are much slower and therefore have a higher likelihood of being bullied by other fish.

  • Avoid tiny, spiny fish. Goldfish are enthusiastic explorers who will put everything in their mouths, including food, substrate, plants, and other fish. We generally want to avoid any species that may be consumed in their mouth because they're too small to escape their clutches. Also, keep an eye out for smaller fish with spines, such as cory catfish, which might become caught in a goldfish's gill plate if swallowed.

  • Keep tank mates that can live in the same conditions as goldfish. Goldfish thrive at temperatures of 50 to 70 degrees Fahrenheit, and they can endure room temperature without a heater. This is on the lower end of many fish on our list's comfortable temperature range.

Common Goldfish Diet 

Goldfish must be provided with a diet that contains all the essential nutrients they need to live a long and healthy life. A varied diet is a key to good goldfish health, color, and finnage.

Goldfish are omnivores and require both animal and plant material in their diet. A good quality goldfish food will contain all the nutrients your fish need. It is critical, however, to provide them with fresh fruits and live foods as well. These omnivores have a hard time controlling their appetites; they will constantly consume even though it is harmful to their health.

Here are some of the best foods to feed your goldfish:

  • Algae- These small, plant-like organisms are a nutritious food source for goldfish. Algae can be found in most ponds and aquariums.
  • Blood worms- Bloodworms are small, red worms that live in fresh or saltwater. They are an excellent food source for goldfish and other fish as this live food is high in protein.
  • Brine shrimp- Brine shrimp are small, shrimp-like crustaceans that live in saltwater. Thye provides a good source of protein for goldfish.
  • Daphnia- Daphnia are small, freshwater crustaceans. They are rich in many nutrients.
  • Krill- Krill are small, shrimp-like crustaceans that live in saltwater. They provide goldfish with protein and omega-3 fatty acids.
  • Zooplankton- Zooplankton are tiny, planktonic animals. They are an excellent food source for goldfish as they provide many essential nutrients.
  • Decaying plant matter- Decaying plant matter is a good source of food for goldfish. This live food is high in fiber and nutrients.
  • Worms- Worms are a common food source for goldfish. Worms like night crawlers, earthworms and red wigglers are all good choices.
  • Fruits and vegetables- Fruits and vegetables are an excellent supplement to a goldfish's diet. Goldfish love fresh fruits and vegetables like lettuce, spinach, zucchini, peas, watermelon, cantaloupe, oranges, and more.
  • Mysis shrimp- Mysis shrimp are small, freshwater crustaceans. They provide a good source of protein for goldfish. They can be found in pet stores that sell fish food.
  • Water lettuce- Water lettuce is a floating aquatic plant. It is an excellent food source for goldfish as it is high in fiber and nutrients.

How Often Should You Feed Goldfish?

Goldfish are constant grazers and will eat whenever they can. They have a voracious appetite and will eat much more than what is necessary. It is important to provide them with a varied diet of both live and prepared foods.

A good rule of thumb is to feed your goldfish as much as they can consume in 2 to 3 minutes, 2 to 3 times a day. This will ensure that they are getting enough food without overfeeding them.

Overfeeding your goldfish can lead to many health problems like swim bladder disease, obesity, and digestive issues.

Mae sure to remove any uneaten food from the tank as it will decompose and pollute the water.

Common Goldfish Diseases

Goldfish, even though they are hardy fish, are susceptible to many diseases. The most common goldfish diseases are caused by poor water quality, overfeeding, and stress.

Some of the most common goldfish diseases are:

  • Ich- Ich is a parasitic infection that causes white spots on the fish's body. It is caused by poor water quality and stress.
  • Columnaris- Columnaris is a bacterial infection that causes ulcers on the fish's body. It is often fatal if left untreated.
  • Swim bladder disease- Swim bladder disease is a condition that affects the swim bladder, a sac-like organ that helps the fish to float. It can be caused by poor water quality, overfeeding, and stress.
  • Dropsy- Dropsy is a condition that causes the fish's body to swell with fluid. It is often fatal if left untreated.
  • Fin rot- Fin rot is a bacterial infection that causes the fish's fins to disintegrate. It is often caused by poor water quality and stress. It can be treated by adding aquarium salt to the tank.
  • Gill flukes- Gill flukes are parasitic worms that attach themselves to the gills of the fish. They can cause difficulty breathing, and if left untreated, they can be fatal.
  • Anchor worms- Anchor worms are parasitic worms that attach themselves to the skin of the fish. They can cause irritation and if left untreated, they can be fatal.

Symptoms of Sick Fish

The following are some common symptoms of disease in goldfish:

  • Loss of appetite
  • Lethargy
  • Gasping for air
  • Floating upside down
  • White spots on the body
  • Clamped fins
  • Sores or ulcers on the body
  • Red streaks on the body
  • Frayed or disintegrating fins

If you notice any of these symptoms in your goldfish, it is important to seek treatment from a qualified veterinarian as soon as possible.

How to Prevent Goldfish Diseases

The best way to prevent goldfish diseases is to provide them with a clean and stress-free environment. Follow these tips to help keep your goldfish healthy:

  • Regularly clean the tank and change the water.
  • Do not overfeed your goldfish.
  • Provide them with a varied diet of both live and prepared foods.
  • Add aquarium salt to the tank to help prevent infections.
  • Quarantine new fish before adding them to the tank.
  • Do not overcrowd the tank.
How Often Should You Feed Goldfish

Breeding Common Goldfish

Goldfish breeding is not as simple as it may sound. Creating the proper living environment for your goldfish, locating suitable mates, stimulating procreation, and ensuring that eggs are properly incubated and born are all important phases in breeding goldfish. It's difficult to turn a profit on such projects since it is time and money intensive.

However, if done correctly, you might be pleasantly surprised. So, how to breed common goldfish? Here are some tips:

Selecting Mates

Selecting quality mates is the first step in breeding goldfish. However, the procedure of sexing goldfish is without a doubt the most essential activity in breeding; clearly, if you put a bunch of males together because you can't tell them apart, you won't get any offspring.

Female vents are rounded, like outies. The abdomen, between the pelvic and anal fins, is very soft and flexible. Female goldfish have round pectoral fins. Overall, female common goldfish pregnant is a bit shorter and rounder than male goldfish; they also tend to be more pointed. This is not always the case, but usually, the difference is dramatic enough that you can tell at a glance.

Male goldfish are generally smaller than female goldfish. They have little white dots or tubercles on their bodies. The vent of males slices in rather than out, as with females. Males' abdomens are considerably more rigid and hard than those of females. Male pectoral fins are sharper and longer than female pectoral fins, which is another distinguishing characteristic.

After the gender is determined, it is essential to evaluate the quality of your goldfish. The following factors must be considered while selecting mates:

  • Size- The size of your goldfish is an important factor to consider while selecting mates. Make sure that the goldfish you select is not too small or too large in comparison to your own.
  • Color- The color of your goldfish is also an important factor to consider while selecting mates. Make sure that the colors of your goldfish complement each other.
  • Health- The health of your goldfish is the most important factor to consider while selecting mates. Make sure that the goldfish you select is free of diseases and parasites. There should not be any visible signs of stress or injury.
  • Age- The age of your goldfish is also an important factor to consider while selecting mates. Make sure that the common goldfish you select is of breeding age. The ideal age for breeding goldfish is 2-3 years old.


After you have selected quality mates, the next step is to condition them for breeding. The following tips will help you condition your goldfish for breeding:

  • Provide them with a diet of high-quality foods such as live foods and prepared foods rich in proteins, vitamins, and minerals.
  • Increase the feeding frequency and provide them with small meals several times a day.
  • Regularly clean the tank and change the water.
  • Maintain optimal water conditions such as pH, temperature, and hardness.

Setting the Right Conditions for Breeding

It takes a long time to establish the proper environment for mating. Goldfish like to conceive during the spring, and July and August are the ideal months to acquire them. Try to plan ahead of time if you can; it'll be easier for your goldfish that way.

The first step (assuming you already have a smaller tank that can hold at least 4 gallons of water is to clean your newly acquired breeders. You may use 80 eye drops of Formaldehyde, 6 drops of Copper Sulphate, and just 1 tiny spoonful of Terramycin to clean the goldfish and the tank while you're at it. This will disinfect everything and help avoid any potential diseases down the road.

Goldfish can produce between 10 and 20 eggs in a single cycle. If you wish to raise goldfish, you'll need a tank with at least 20 gallons (75.7 liters) of water. Add the appropriate props for a realistic-looking goldfish habitat as well. This usually includes natural or manufactured bushy plants or robust fibers that can act as a spawning substrate for the eggs.

You'll also need to purchase an air pump and air stone diffuser for proper aeration and filtration in the tank. Drop the temperature gradually before raising it again. Goldfish breed in the spring, so you'll want to mimic the water heating up. To accomplish this, first, reduce the temperature to between 10°C (50°F) and 12°C (54°F). Then, every day for a week, gradually raise the temperature by 2°C (3°F), until it is between 20°C (68°F) and 23 ° C (74 ° F).

Invest in spawning mops if you don't already have them. Females lay their eggs into floating nylon string that is attached to spawning mops (like the one shown). If you have plenty of brush, vegetation, or other fibrous material, you don't need spawning mops; they're simply a handy way to protect your goldfish eggs.


There are 2 ways to induce spawning in goldfish: natural and manual stimulation. Either way, you'll need to place the male and female goldfish in the breeding tank together.

Natural Spawning

Introduce the four or five goldfish into the same aquarium and search for natural spawning. The male goldfish will have a lighter tint around their stomach region and be swimming around the tank quickly, usually chasing the females.

The female will drop the eggs over one of the real plants, once the male goldfish will distribute sperm over the eggs to fertilize them. If you miss the moment of procreation but see eggs in the aquarium plants, they have likely been fertilized.

Manual Spawning

If natural spawning does not occur, you can manually spawn the goldfish. To do this, put a male and a female goldfish in a shallow tank together. The male goldfish should be gently held and his vent rubbed to clear it of sperm, as previously mentioned.

Repeat the procedure with the vent of the female, releasing her eggs, after swirling the sperm in the water once more. Combine the sperm and eggs by swirling the water in the tank with your hand for about five minutes.

Be very gentle with artificial insemination. Because your goldfish can easily bruise, apply minimal pressure when clearing their vents. You don't have to keep your goldfish underwater while squeezing their vents. Goldfish, like other fish, can breathe above water, and out of water is fine for them but not as well as outside of it.

Raising Goldfish Fry

Raising Goldfish Fry 

Unfortunately, goldfish in captivity are notorious for devouring all of their eggs. To ensure a complete batch of eggs is developed successfully, the parents must be removed from the eggs almost immediately to guarantee that they finish hatching. Depending on the temperature of the water, fertilized eggs should develop within 4 to 7 days.

When the eggs hatch after they have been fertilized, give them the same diet as the adults. Just be careful not to feed them any bigger bites than the parents so their smaller mouths and throats can swallow. Keep the eggs in water that matches where they were incubated. Transplanting is only advised at your own risk.

Soon, you'll have a whole litter of goldfish youngsters swimming around your aquarium. Make sure the tank can support all of the young goldfish fries.

FAQ (H2)

What Is the Most Common Type of Goldfish? 

The most popular goldfish variety in the United States is the comet goldfish. It differs from the common goldfish in having a long, deeply forked tail and longer fins.

What Type of Goldfish Stays Small? 

The smallest goldfish breeds are those that reach a length of five or six inches. The Pompon Goldfish, Bubble Eye Goldfish, Celestial Eye Goldfish, Pearl scale Goldfish, and Butterfly Tail Goldfish are among them.

Which Goldfish Are the Hardiest?

The common goldfish is the most robust of all the goldfish varieties, and it can survive in an outdoor setting. These become big fish, often growing to be 12 to 18 inches long. The common goldfish resembles its feral ancestors but is more colorful.

Do Common Goldfish Get Lonely?

There is no indication that goldfish become lonely, regardless of whether we can never be sure. It's probable that when you notice a single goldfish seeming sluggish or melancholy, it's more due to its surroundings or health than because the fish is lonely.

What Do Goldfish Eat?

Goldfish are omnivorous, meaning that they will consume both plant and animal material. In the wild, their diet consists of small crustaceans, insects, and plant matter. In captivity, they can be fed a diet of pellets or flakes, live or frozen foods, or vegetables.

Do Goldfish Sleep?

Goldfish do not shut their eyes to sleep since they lack eyelids. However, research has shown that fish do enter a state of reduced activity at night in which they are less responsive to stimuli and spend more time resting near the bottom of their tanks.

Fancy Goldfish Vs Common Goldfish, What Are the Differences? 

A fancy goldfish are a group of one-of-a-kind kinds that give your aquarium a high fashion appearance. Each has its own selling feature, whether it's two fluid-filled sacs or a quadruple tail fin. They don't have any special needs, so most people should be able to look after them.

The common goldfish is a type of goldfish that has no distinctions from its wild progenitor, the Prussian carp, other than its color and form. They are the simplest and oldest goldfish breed, having been bred in China for over a thousand years.

Can Fancy Goldfish Live With Common Goldfish? 

Fancy goldfish, Comets, and Shubunkins may not be kept with common goldfish. It's better to keep fancy goldfish with other fancy goldfish, and common goldfish with other common goldfish.


Common goldfish are freshwater fish that are popular in aquariums and ponds. They are a type of goldfish that has no distinctions from its wild progenitor, the Prussian carp, other than its color and form. The common goldfish is the most robust of all the goldfish varieties, and it can survive in an outdoor setting. These become big fish, often growing to be 12 to 18 inches long.

These are very hardy fish, however, proper care must still be taken in order to maintain a healthy environment. They are omnivorous, meaning that they will consume both plant and animal material. In the wild, their diet consists of small crustaceans, insects, and plant matter.

In captivity, they can be fed a diet of pellets or flakes, live or frozen foods, or vegetables. It is important to maintain a clean tank and to provide hiding places for your fish as they can become stressed if their environment is too open. Weekly water change is recommended to keep the fish healthy.

In this article, we have learned about the common goldfish - their care, growth, and some of the differences between them and fancy goldfish. We hope that this has been informative and helpful in your goldfish-keeping journey!

Sarah Robertson

I am a passionate blogger who also happens to be a fish keeping enthusiast. Writing about my hobby is something that I absolutely love to do, and it's no secret that my chosen topic is always centered around fish keeping.

Sarah Robertson

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