The guppy , or Poecilia reticulata , is a very popular freshwater fish in the aquarium trade. Native to the rivers and streams of Central and South America, it is prized for its ease of care, rapid reproduction, and wide variety of colors and patterns.
 Features :
 Size : Guppies typically grow between 2.5 and 5 cm long.
 Color : They are distinguished by their vivid coloration, which can vary considerably depending on the strain, ranging from blue to red, yellow and green, often with distinctive patterns.
 Behavior : These are sociable fish that prefer to live in groups. They are generally peaceful and coexist well with other freshwater fish species.