Guppy, (Poecilia reticulata or Lebistes reticulatus), colourful, live-bearing freshwater fish of the family Poeciliidae, popular as a pet in home aquariums. The guppy is hardy, energetic, easily kept, and prolific. The male guppy, much the brighter coloured of the sexes, grows to about 4 centimetres (1 1/2 inches) long; the female is larger and duller in colour. Guppies have been bred in a number of ornate strains characterized by colour or pattern and by shape and size of the tail and dorsal fins
The image is for illustration purposes only. Due to natural colour variations within a species the actual fishes colouration may vary slightly.