The Wakin Goldfish Standard is as follows:
Depth of body to be approximately 40% of body length.
Caudal fin to be divided and forked with slightly rounded, well-spread lobes held above the horizontal.
Dorsal fin to be single, all other fins to be paired and their extremities slightly rounded.
Minimum body length to be 7.5 cm (3 inches).
The fish should be bright and alert. The body should be strong and sturdy with a smooth outline. The caudal fin should be well divided, forked, and held slightly above the horizontal.
Metallic fish may be self-coloured (red, orange, yellow, blue, brown or black) or variegated (any combination of red, orange, yellow, blue, brown, black and white) in a pleasing pattern similar on each side. Quality fish will have high colour intensity and metallic shine extending into the fins.
Calico fish should have a blue background with patches of violet, red, orange, yellow, brown and white, spotted with black. Quality fish should have a high intensity of colour evenly distributed over the body, with colour, especially black, extending into the fins.