Guppies are a very popular tropical ornamental fish with a wide variety of species and different shapes. The following are the main types of guppies:

Mosaic guppies: This kind of guppy has a pattern like a mosaic on its caudal fin. The totem lines don't have to be continuous, but the overall integrity should be good.
Grass-tail guppies: The caudal fin of grass-tail guppies is covered with small black round spots. The patterns are as delicate as turf. Representative fish species include yellow grass-tail guppies, red grass-tail guppies, blue grass-tail guppies, etc.
Tuxedo guppies: The back half of tuxedo guppies is black, dark blue or other solid colors. There are no variegated spots or patterns on the caudal fin. The overall feeling is elegant and generous.
Metallic guppies: The front half of the body of metallic guppies shows a special metallic blue. When the water quality is poor or the fish is unwell, this metallic blue color block will turn black.
Swordtail guppies: The caudal fin of swordtail guppies extends straight out like a sword. According to different extended parts, it is divided into different forms such as double swordtails, upper swordtails, and lower swordtails.
Platinum guppies: The body color of platinum guppies is divided into gold, silver-white or platinum. The platinum color covering the body surface should be uniform.
Snake king guppies: The body of snake king guppies is covered with long stripes like snakes. The patterns are delicate and stable, suitable for beginners to raise.
Ancient guppies: The caudal fin of ancient guppies has markings similar to mosaics, but the lines are blurred. The surface of the fish body has patterns similar to snake patterns.
In addition to the above types, there are some other strains and variants of guppies, such as leopard guppies, single-color guppies, etc. These varieties of guppies are loved by ornamental fish enthusiasts because of their unique shapes and colors.