Posts Tagged Goldfish

Goldfish Variations

Goldfish Variations

By Allen Jesson

The Goldfish of today originates from wild Asian carps, and all the different Goldfish variations are considered to be the same species: Carassius auratus auratus. The Goldfish was one of the first fish species kept in ponds by man. In China, wild caught carps were kept in outdoor ponds as ornamental fishes and selectively bred until the eventually turned into the first type of goldfish. The ancestor of our modern goldfish is believed to be the Crucian Carp, Carassius carassius.

You can find a wide range of different goldfish types, commonly divided into four main groups. The first group consists of the so called “Ce goldfish” or “Grass goldfish”, the second group contains the fancy “Wen goldfish”, the third group is where you find “Dragon Eye goldfish” with large and protruding eyes, and the fourth group is made up by the “Egg goldfish” that lacks a dorsal fin.

Keeping goldfish in ponds is still very popular, but goldfish are also kept in aquariums. Some of the fancy goldfishes have anatomical features that make life in pond risky for them. They might for instance have a hard time catching food since their eyes are deformed. When you keep goldfish in an aquarium, it is easier for you to make sure that the fish really eats.

Ce goldfish / Grass goldfish

In this group, you will find the original type of goldfish. They are quite similar to their wild ancestors and do not have any fancy features. One of the biggest differences between a wild Crucian Carp and a Goldfish from this group is the coloration. Wild carps need a camouflaging coloration to survive, and mutations that cause unusual color variations are not common since those fishes rapidly become eaten. The early Chinese carp keepers appreciated the rare color mutations, and used these fishes for selective breeding. In the protected pond, the carps did not need to stay camouflaged. The modern goldfish can therefore be obtained in several color variations that would not be successful in the wild, including orange, lemon yellow, white, black and naturally golden.

Wen goldfish

Eventually, the breeders managed to produce goldfish with long and flowing tails. Just like the mutated color variations described above, a long and flowing tail would be a problem for the wild carp, but in a protected pond the tail configuration did not really matter. One example of a popular Wen goldfish is the aptly named Fantail goldfish. This fish is decorated with a dual-lobed tail that can grow up to 3 inches (7.6 centimeters) in length. A Wen goldfish is always equipped with a fancy tail and a dorsal fin.

Dragon Eye goldfish

A Dragon Eye goldfish has eyes that protrude from its head. Two examples of popular Dragon Eye goldfishes are the Telescope Eye goldfish and the Bubble Eye goldfish.

Egg goldfish

Unlike the other forms of goldfish, the Egg goldfish is without dorsal fin. The Japanese Ranchu goldfish is one example of a commonly kept Egg goldfish. Sometimes a Bubble Eye goldfish will have no dorsal fin, and thereby be considered an Egg goldfish rather than a Dragon Eye goldfish.

Allen Jesson writes for several sites including two sites that specialize in salt water and fresh water aquariums and the aquarium site and Seapets, a leading source for aquariums and fish tanks.

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Goldfish aka Carassius Auratus Fish aka


Source: From Wikipedia, the free encyclopedia

The Goldfish (Carassius auratus) was one of the earliest fish to be domesticated, and is still one of the most commonly kept aquarium fish. A relatively small member of the carp family (which also includes the koi carp and the crucian carp), the goldfish is a domesticated version of a dark-gray/olive/brown carp native to east Asia (first domesticated in China[citation needed]) that was introduced to Europe in the late 17th century. The mutation that gave rise to the goldfish is also known from other cyprinid species, such as common carp and tench.

Goldfish may grow to a maximum length of 23 inches (59 cm) and a maximum weight of 9.9 pounds (4.5 kg), although this is rare; most individual goldfish grow to under half this size. In optimal conditions, goldfish may live more than 20 years (the world record is 49 years); however, most household goldfish generally only live six to eight years. [1]

Aquarium Supplies Part 2 — My First Experience With Goldfish

Aquarium Supplies Part 2 — My First Experience With Goldfish

By Jonathan Wangsa

If you are seriously considering keeping fish as pets or are just starting out, I would like to stress again the importance of having some basic knowledge about aquariums and fish keeping in order to enjoy the hobby for a significant length of time and to avoid frustrations and disappointments.

In the first article I illustrated this by sharing my own childhood experience with bettas, and now I shall share my experience with goldfish.

While I still had my bettas I also wanted to keep some goldfish since I also found them attractive and interesting. My mom was reluctant to buy me some since I already had the bettas but she finally gave in and bought me a pair of “telescope” goldfish.

At the time I didn’t have a real aquarium yet so we put the goldfish in a large jar (about 1 gallon). One of our neighbors told us that goldfish wouldn’t tolerate chlorine and therefore, we should not use tap water. They happened to have a well and offered to let us use the water for my goldfish.

I soon noticed that the fish were constantly gasping for air at the surface. They also refused to eat. After a couple of days the water started to become cloudy, so I changed it totally. However, the fish still refused to eat and continued to gasp for air. Not long after that they became lethargic and eventually died.

My mom said probably “telescope” goldfish just weren’t hardy enough and not easy to keep. However, I had not given up on goldfish yet, so I asked if I could try to keep other kinds and hopefully would have better luck. My parents eventually consented but my dad suggested that I get a real aquarium instead of putting the fish in a jar. You can imagine how elated I was that finally I was going to have a real aquarium.

So we went out and bought a 10 gallon aquarium and a few goldfish at the same time. I believe we bought 4 fish: a couple of medium sized “comets” and a pair of “pearl scales.” We didn’t buy them at a store, though. It was more like a wholesale type of place where there were plenty of different sellers selling their aquariums and fish. Again, at the time neither my mom nor I knew much about fish keeping. So we didn’t buy any supplies for the aquarium. Just the tank and fish. That was it!

When we got home I filled up the aquarium with untreated tap water and immediately put the fish in. I was so excited to see the goldfish swim around in the tank, but that didn’t last long. In a few hours the fish were no longer lively. They sort of stayed at the bottom and didn’t move very much.

When my dad saw them he said they probably lacked oxygen and suggested that we go out and buy an air pump to aerate the tank. I had only seen aerated aquariums in places like public aquariums and fancy restaurants and thought that an air pump had to be very expensive, but my dad said it would be OK.

So my mom and I went to a fish store to look for an air pump. Besides the pump we also needed something to hook the plastic tube on to and hold it in place. We chose to get a frog ornament for that purpose (the air would come out of the frog’s mouth). All the stuff didn’t really cost too much.

As soon as we got home we hooked everything up and air started flowing into the aquarium. Like magic, within a couple of minutes the fish started to “wake up” and finally became lively again. My dad said, “I told you so!”

The air pump was about the only supply we bought for the aquarium. Having beautiful and lively goldfish in my very own aquarium was good enough for me. I loved them so much that I also fed them too much. I was happy to watch them eat. As you can imagine though, the water got dirty very quickly that I had to change it every day.

One day a friend of ours told us that we shouldn’t be changing the water daily since it wouldn’t be good for the fish. Also, in the mean time I had read somewhere that if you wanted to use tap water you should set it aside for a few days to get rid of the chlorine. Therefore, I set aside a bucket of water and changed 3/4 of the water about every 3 days.

I was able to enjoy the goldfish for a few months before one of them got sick and died and the others followed soon after. I was extremely sad and because of that my dad told me I couldn’t buy any more fish. So, after all my fish died my hobby came to a sad end. Well, at least for a while.

Again, there is a take-home lesson here: if you’re serious about having your own aquarium, there’s some basic knowledge you need to possess before you even buy the aquarium and fish. You don’t have to know everything there is to know about the hobby, but at least for the sake of the fish, you should understand a few things (such as how many fish you can have in a tank, how much to feed them, what kinds of aquarium supplies to have, and what kinds of maintenance you need to perform, just to name a few) that are crucial to their well being.

If you’re an expert you most likely picked up on the things I did wrong in the story I shared above. If you’re a beginner or just thinking about getting started with this hobby, I invite you to visit my web site (see below) to learn more.

About the author:

Jonathan Wangsa is the webmaster of All About Aquarium Supplies. There you can find resources and information about aquarium supplies and other aquarium related topics. Whether you’re an expert or a newbie, you can also share your own experiences.

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How to Choose Goldfish

How to Choose Goldfish

By Nate Jamieson

How you choose your goldfish, depends largely on two things: the type of fish you really like to see, and the kind of container you intend to keep them in.

People in warmer climates, like to populate their outdoor ponds and pools with goldfish, which is a wonderful addition to the outdoor décor of your lawns and gardens. These may be natural ponds, or manmade pools that are actually vinyl liners sunk into the ground, and provided with air and water circulation through a pump system. This circulation, natural or otherwise, is important to keeping the water well oxygenated for the fish.

But surprisingly, if your pond is deep enough, it’s possible to over-winter your goldfish outside. If you are populating an outdoor pond, it’s best to start with fish that were raised that way themselves, as there is less likelihood of losing some that are unable to adapt. Store-bought fish raised in tanks can adapt, but you can expect to lose a certain percentage of them, depending on the harshness of the weather.

If you’re just starting out, you might try just the common goldfish at first, since these will be less expensive to replace, should you have a hard winter. If your fish are not surviving, you may need to look at better air and water circulation, or deepening the pond. But once you have a thriving colony, you can begin adding some of the hardier varieties of fancy goldfish.

Love Tropical Fish? Find out how to create a beautiful, low-cost tropical fish aquarium with complimentary tips at

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Goldfish Tips – Choosing The Right One

Goldfish Tips – Choosing The Right One

By Dane Stanton

Tips to getting the right Goldfish

Goldfish are a temperate breed that can be found in cool streams, lakes, and ponds throughout Asia and part of Eastern Europe. However, the ones you will buy for your tank have been bred in captivity. Once you’ve decided that the Goldfish is the right one for you – you will need to find the right kind of goldfish. Take your time and find out more, rather than just rush out and buy the first goldfish you find in the first pet store you come by. Decide on how many you want to buy. If you really want just a single Goldfish, please do a re-think on the issue because it can get lonely and boring for a lone ranger in a tank! Once you’ve though it out, here are some of the things you must keep in mind:

• Choose the right pet shop. Ask people you know who are committed fish keepers for reputed goldfish dealers. These are the people who care and would have professional knowledge of breeding and nurturing goldfish. See if they give a proper fish guarantee. When you enter the shop, look around at all the tanks. Make sure that the tanks are not overcrowded with fish. See if all kinds of fish are thrown together in one tank or care is taken to separate the various species. Look out for dead floating fish. The dead fish could have spread an infection to the other fish.

• Question the Goldfish Dealer. If the dealer claims that the goldfish are imported, then find out which country they are from and when they arrived. Ask him or her is the correct quarantine procedures have been adopted before putting up the goldfish for sale. If they were bred, find out when they were bred and how the fish have been kept till now as in what kind of medications if any has been used and for how long. Find out if the dealer has used salt in the water.

• Observe how the fish swims. This is a good gauge to identify healthy fish. A fish should be active, swimming with ease and style and poking around curiously at nooks and corners. Choose a goldfish that looks active and doesn’t wobble or tilt to one side or just rest at the bottom. Tap the tank and see how the goldfish reacts. A fish that is slow in its reaction might be a sick one. Make sure that it’s not opening its mouth too much for air, as it might be an indication of problems with the gills.

• Check out the fins. Make sure that the dorsal fin is straight and stands up. The backs of the goldfish should be smooth, without unsightly bumps. Also check that all the fins are healthy, even and are not rotted away or damaged. In all, a Goldfish should have a dorsal fin (unless it is a goldfish without a dorsal fin), pectoral fins that extend out on sides, two anal fins or one right in the middle. Beware a goldfish with just one anal fin that’s placed kind of off to one side. It could mean that the other anal fin is growing inwards and that could be fatal to the goldfish.

• Inspect the looks. Make sure that you give the goldfish you are choosing a thorough look over. See that the fish has a nice symmetrical shape and make sure they don’t have large heads compared to their body. It would do good to feel the fish to check if the skin is too slimy or too dry but at least ensure that the skin is free of spots and odd bumps and that the gills are red. There should be no redness in the anal region and definitely nothing sticking out or leaking out. The outside of the mouth should be free from redness and white strings and the eyes free from white flecks.

• Bag ‘em right. Where you’re buying goldfish, you will have to put them in the ubiquitous plastic bag, but do so with care. Make sure that the dealer leaves enough space on top for the oxygen and the right amount of water. The right amount of the water is that which covers the fish. Do not allow the dealer to add any medicine or drops or anything else. Don’t make the bag too tight and avoid a big bag that might lead to too many folds in which the fish could get trapped and hurt. The bag should be tied till it is adequately taut.


Dane Stanton is an expert on Goldfish Health Care. For more information about buying the right Goldfish, visit his site at –

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