The caudal lobe is closest to the tail, and the cranial lobe is closest to the head. These are called the caudal lobe and the cranial lobe. In fancy goldfish it is like two balloons joined in the middle which sit underneath the spine towards the rear of the fish. It uses it to rise up, dive down or just to sit where it is. The swimbladder is an internal organ that the fish uses to maintain its position in the water. She has a double tail and rounded compact body shape A black ranchu fancy goldfish, note the lack of dorsal fin, compact body shape, twin tail and head growth What is a swimbladder? If it has a double tail fin it is a fancy goldfish. There can be confusion between the different types and there are plenty of ‘Heinz 57’ types so don’t worry if you can’t pin your fancy goldfish down to a specific. It is these ‘fancy’ goldfish that are more prone to buoyancy problems. There are others but that would be a whole other article in itself! These fish tend to have much more rounded, chubby, compact body shapes. The fancy goldfish: These fish have a double tail fin this includes fantails, veiltails, ranchus, lionheads, moors/telescope-eyes/dragon-eyes, pearlscales, orandas, bubble-eyes and celestials to name the ones most commonly available in UK shops. They rarely suffer from buoyancy problems although it is not unheard of. The body shape of singletails is longer, less compact and more streamlined than a fancy goldfish and they are usually fast, efficient and nimble swimmers. The fins can be as long, flowing and fancy as anything and it can be any colour if the fish has one tail fin it is a singletail goldfish. There is sometimes confusion over whether a snazzy looking singletail is a fancy goldfish. This includes commons, comets and shubunkins. The singletail goldfish: These fish have a single tail fin (caudal fin). Broadly speaking there are two types of goldfish: There is sometimes confusion over whether or not a goldfish is a ‘fancy’ goldfish.
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Let’s start from the beginning and go through things step by step … What is a fancy goldfish?Īll goldfish are the same species, they are carp Carassius auratus to give them their Latin or scientific name.
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I do not claim to be a scientist or expert in the whys and wherefores of this subject but I hope that this article can help other people improve the lives of their fancy goldfish. This article is written from personal experience of my own fish and the numerous threads and posts on various forums where I’ve shared and gathered information, and discussed the issue with other fishkeepers. You need to consider the bigger picture before you can pin down the reason for your fish’s swimming problems. Unfortunately the chances are that the treatment will not stop your fish from floating because it is attempting to treat a condition that the fish does not have.
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This is not unreasonable the fish is floating, the treatment says it will stop this. If you go into a fish shop and ask for advice on a floating fancy goldfish there is a strong possibility that they will sell you one of these products. There are numerous medications and treatments available which are sold to treat ‘swimbladder disease’. Unfortunately a little knowledge can be a dangerous thing and sometimes ‘swimbladder disease’ is stated as being the problem without anyone looking at the bigger picture. If a fancy goldfish is having problems with buoyancy and/or swimming then ‘swimbladder disease’ is the conclusion that many people come to. If you keep fancy goldfish then the chances are that at some point in your fish’s life you may be asking these questions. “My goldfish has swimbladder disease … or does it …?” “My goldfish is swimming upside down, does it have swimbladder disease?” “My goldfish is floating, does it have swimbladder disease?” If you have any questions, or would like advice specific to your fish, please consider joining one of our recommended forums where there are experienced fishkeepers who will be able to help you. The cure is often a lot simpler than you might be expecting, and sometimes a few simple changes can quickly resolve things. Fancy goldfish do tend to be prone to buoyancy problems but these are not always caused by true ‘swimbladder disease’. The word seems to have become a generic term to describe/diagnose buoyancy problems experienced by fancy goldfish.
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We often see posts from people on forums who are worried that their fancy goldfish has ‘swimbladder’.