The average Fantail goldfish size is between six and eight inches in length. Some fish may develop telescoping eyes after six months of age, but sellers will typically rename them once the eyes start to develop. Though, you can also find pure white, black, metallic blue, and calico!Īuthor Note: As the most basic kind of Fancy goldfish, don’t expect to see any extreme traits beyond what we’ve described above. Orange, yellow, and red are the most common. Plus, they come in a wide range of colors. The scales of the Fantail goldfish can be metallic or nacreous. It’s tall and arched, stretching down to the base of the tail. But from the sides, it looks like a flowing fan.įantail goldfish have a double anal fin too. Rather than a simple forked shape, the caudal fin splits into four lobes. As a result, they are prone to a couple of diseases (more on that later).Īnother defining characteristic is the double tail fins. Believe it or not, the unique shape of the body actually limits space for their organs.

Their bodies are quite bulbous, resulting in a somewhat bloated appearance. They do not have the slim torpedo-shaped body of a standard goldfish. The first one you’ll notice is the egg-shaped body. Appearanceįantail goldfish have several standout physical traits that contribute to their popularity. However, they require well-maintained environments to truly thrive.

Readily available at most pet stores around the world, these fish can add a ton of beauty to your tank. Their closest living relative is the carp, but Fantails are very distinct in their own right! Like other Fancies, these fish are a product of selective breeding techniques from hundreds, if not thousands, of years ago. These freshwater fish are not found in the wild, and are the simplest kind of fancy goldfish. A good option for beginners, these fish are quite hardy and can do well in the right conditions. Known for their elegant fins and regal appearance, the Fantail goldfish is one of the most popular species in the pet trade.

Goldfish aquarium prolific