by Rotem Gavish
The goldfish is one of the most common coldwater species all over the world. They originated in Asia, Central Asia and China. In many countries all over the world people set up an aquarium just for these beautiful goldfishes. goldfish can be found in all sizes and colors .There are many fancy variants including the Red oranda Goldfish, shubunkin, ryukin, Lionhead, Calico Ryukin Goldfish and more.
The Pearlscale Goldfish for example is one of the most popular goldfish species in japan and china. Pearlscale Goldfish has an egg-shaped body. The main characteristic of the pearlscale is its thick arched scales which look like tiny pearls. It also found in many colors, blue, black, gold, red, calico and even white red combinations. It can reach to a size of 8 inches (20cm) and like all goldfish he is an omnivore. It will accept flake and pellet foods, also include some vegetable matter such as nori or spirulina and live or frozen foods. It is highly recommended to feed them with high quality goldfish flakes and goldfish pellets.
The Pearlscale Goldfish is very adaptable species that tolerates a wide range of water conditions. This species like the entire goldfish group this species will thrive in coldwater aquariums and can tolerate a wide range of temperatures from 2c to 30c.Goldfish have the same diseases as tropical fish, the most common diseases are: ich, bladder disease and external parasites including flukes so pay attention to your fish and look for this diseases .To prevent these diseases from happening stabilize the temperature especially when you perform water changes and make sure to have suitable filtration system. Pearlscale Goldfish are easy to breed, this species breed in the early morning. The female will scatter her eggs on the plants, rocks or the substrate; afterwards the male will fertilize these eggs. The fry hatch after 3-5 days and need to be feed with small foods such as cyclops or fry foods. It is recommended to remove parents once the eggs are layed, otherwise they will eat their own eggs.
Another common species is the Black Moor. The Black Moor Goldfish is a beautiful member of the goldfish family and maybe the most common species in europe, the Black Moor is the black variety of the famous Telescope Goldfish. The main difference between the black moor and the telescope goldfish are the eyes. The black moor eyes are less protruding than the Telescope goldfish. Like its entire group the black moor is a member of the carp group and is generally a quite hardy species. Black Moor Goldfish are suitable for indoor fish tanks, and not to all kinds of outdoor goldfish ponds. Like all goldfish they can tolerate very cold water temperatures so they are suitable for ponds that dont freeze in winter.
The Black Moor Goldfish will prosper in a 25 gallon or larger tanks with a fine gravel or sand bottom and hardy plants, it is known as plant eater so it is recommended to use only hardy plants such as Echinodorus species, Microsorium and Anubias species. When we decorate its tank we should think of its sensitive and delicate eyes and protect them from sharp decoration. The Black Moor gets along with other fish in a coldwater community fish tank and if kept with other goldfish it will school with them. It is also easy to breed. Males are usually thinner then females. They may exhibit breeding spots on their heads and flanks during the spawning season. Gradually increase the temperature to 72 degrees F. Provide soft vegetation or a spawning mops, and excellent water quality. Recommended to remove parents once the eggs are layed, otherwise they will eat their own eggs. A mature pair may produce over 1,000 eggs which will hatch after 3-5 days. The fry are easy to feed on small live foods or on liquid fry foods available in any pet store.
The Ranchu goldfish is maybe the most expensive goldfish species. It is known as the “emperor” of the goldfish. The Ranchu Goldfish is very resembling to the Lionhead Goldfish but unlike the Lionhead it has a magnificent short, round body and short fins with no dorsal fin. It also has an amazing pinched tail fin which is at 45 degrees, to its body. The Ranchu was created in china during the Meiji Period but it was the Japanese whom created the Ranchu’s we know these days. Ranchus known to be very friendly species and some fish keepers are able to pet their Ranchus and even to train them to do some tricks. The Ranchu Goldfish come in a variety of colors, gold/white, orange/red, orange/white, white/red and a calico. Ranchu is a highly prized and sought after goldfish especially in Japan but also in America and Europe.
The Ranchu Goldfish is fit for for ponds more then to fish tanks but if you provide him enough space it can be kept in fish tank. The Ranchu is best kept with other goldfish or large coldwater species due to the fact that it is coldwater fish so do not mix it with tropical fish as it requires a less temperature than tropical fish. Ranchu Goldfish are notoriously filthy, producing much waste, frequent water changes and good filtration system is essential. Unfortunately little is known about its breeding behavior. it has same diseases as tropical fish, the most common diseases are: ich, bladder disease and external parasites including flukes so pay attention to your fish and look for this diseases. it is known as plant eater so it is recommended to use only hardy plants such as Echinodorus species, Microsorium and Anubias species.
About the Author:
Rotem Gavish is a fish expert. Dedicating his life to this beautiful hobby, his expertise is in all related to aquarium world such as
tropical fish, fish tank, marine fish, plants and invertebrates. Rotem established in his site section dedicated just for
goldfish with the vision of sharing tips and free information.