Description
Guppy fish (Poecilia reticulata) are a species of small tropical freshwater fish that are common in aquariums.
Guppies are sexually dimorphic, meaning there are distinct differences between males and females of the species. Male guppies are brightly colored in shades of black, green, orange, red, white, and yellow and have patterns like speckles, spots, and stripes. Females are a solid silver color. Guppy size also depends on the sex: males range in size from just under an inch to 1.4 inches (25 to 35 millimeters), while the females are larger, 1.5 to 2.4 inches (40 to 60 millimeters).