The male Black Metal Jacket Lace Guppy is easy to distinguish from the female Black Metal Jacket Lace Guppy because the male is usually more colorful with extremely colorful and large caudal fins (tails). The female is usually larger, thicker bodied, with less color and a smaller cuadal fin (tail).
Pairs are sold as 1 male and 1 female.
Video Link Males – https://youtu.be/RUqs6gZ15tU
Video Link Females – https://youtu.be/m1msbRA71Ek
The image is for illustration purposes only. Due to natural colour variations within a species the actual fish may look slightly different.