However, they are all much more rare then the moor. Overall, the moor is my favorite goldfish. Livebearers are considered simple fish. However, I included them because they are very easy to keep, and if you want a almost hassle free tank, they are your best bet. A guppy is probably the most well known aquarium fish in the world.
Guppies come in a wide range of colors and fin shapes.
The males are the only ones with the pretty big tails. If you have a male and a female, they will breed. They have to be fed special food that will soon be covered in the feeding section. Swordtails and platys. The two fish almost look the same, except that male swordtails have big extensions to their rear fins.