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Assorted goldfish. This is a list of goldfish varieties and their characteristics. Currently, there are about 200 breeds of goldfish recognized in China. [1]Selective breeding over centuries has produced several color variations, some of them far removed from the "golden" color of the original fish.
Goldfish produce pigment in response to light, similarly to how human skin becomes tanned in the sun. Fish have cells called chromatophores that produce pigments that reflect light and give the fish coloration. The color of a goldfish is determined by their diet, water quality, and exposure to light, along with age and health. [48]
Common goldfish in a pond Common goldfish in aquarium. It is a 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. For each small/young goldfish, there should be a minimum of 10 US liquid gallons (38 liters; 8.3 imperial gallons) of water. [3]
The Bubble Eye is a small variety of fancy goldfish with upward-pointing eyes that are accompanied by two large fluid-filled sacs. It is a dorsal-less fish – good specimens will have a clean back and eye bubbles that match in color and size.
Although calico coloration occurs in many fancy goldfish varieties such as telescope eyes, fantails, ryukins, orandas, and ranchu's, the nacreous scale characteristic is usually exclusive to the shubunkins, which are single-tailed fish that are similar to the common goldfish and could grow up to 12 inches in length. [2] [3] Calico Ryukin goldfish
Goldfish reminds people that the traditionally branded bags are still available, “now and always,” at retailers nationwide. In fact, the tweaked name is a nod to its roots.
Pearlscales come in every fancy goldfish color variety. [3] The color may be metallic (ideally self-colored or variegated in a pleasing pattern and similar on each side), orange or calico. The Pearlscale may also be fully black in color. Metallic colors should appear as burnished metal, extending into the fins.
The black oranda is a currently developed color variety that is crossed from the black moor. [citation needed] The jade seal oranda is a type of color pattern that consists of a white, clear cap on its head, while the rest of the body is red or orange. [citation needed]