Allfishes
Black Molly
Poecilia sphenops
The Black Molly has an elongated body. Females tend to be more rounded in appearance. The …
Aquarium fish
Showing 1–5 of 5
Green swordtail
Xiphophorus hellerii
Green swordtails have elongated, narrow bodies that are flattened on the sides. They also have large …
Guppy
Poecilia reticulata
Guppies exhibit pronounced sexual dimorphism, with males and females differing in size, shape, and colouration. Males …
Paradise fish
Macropodus opercularis
This species exhibits sexual dimorphism. Males are larger than females and possess elongated filaments on their …
Sargassum fish
Histrio histrio
The name comes from the Latin word "histrio", meaning "actor", and is related to the behaviour …