Things You'll Need
- Veiltail goldfish
- Fantail goldfish
Instructions
Look at the shape of the tail, properly known as the caudal fin. Fantails hold their caudal fins above the horizontal and the tail itself is a forked shape. Veiltails do not have this forked tail.
Examine the length of the tail in comparison to the body of the fish. Veiltails have a long tail, measuring at least three-quarters of their body length. Fantails have a much shorter tail.
Look at the fish̵7;s overall body shape. Veiltails have a body depth of at least two-thirds their body length, while the ratio for fantails is three-fifths.