* Body size: Male white cloud minnows are typically larger than females, with an average length of about 1.5 inches. Females are typically around 1 inch long.
* Body shape: Male white cloud minnows have a more streamlined body shape, while females have a more rounded body shape.
* Coloration: Male white cloud minnows have a brighter coloration than females. The males have a reddish-orange stripe along their sides, while the females have a pale yellow stripe. The males also have a black stripe running through their eyes, while the females do not.
* Fin shape: Male white cloud minnows have larger and more pointed fins than females. The males also have a longer anal fin than the females.
* Behavior: Male white cloud minnows are more aggressive than females and will often chase after them. The females are more peaceful and will often swim in schools.
If you are still unsure whether a white cloud minnow is male or female, you can try to gently squeeze its belly. If you see eggs, the minnow is female. If you do not see eggs, the minnow is male.