Even though smaller in size, males have larger and more colorful tails than females. Guppy is named after Robert John Lechmere Guppy who discovered this fish in Trinidad in 1866. Guppy is an omnivore. It eats algae and larvae of various insects in the wild, and tropical fish flakes and brine shrimps in the captivity.
It is a very nice species, upload a post, with a little more information