Let’s get started! The guppy (Poecilia reticulata) is the most popular livebearer species and one of the world’s favorite tropical fish! These stunning creatures are a staple in the aquarium ...

A properly dressed male guppy, with its gaudy blue spots and brilliant splashes of orange, can't help but stand out. But for a fish that spends its life swimming among predators, it seems that ...

If the guppy is spending a lot of energy on activity, it probably has less energy to compete with other males for mating, he added. "In an absence of the pollution, fish typically invest their ...

In the same pool you've placed about 30 rivulus, one of the least voracious of all guppy predators. These predator fish, which typically occupy the highest reaches of guppy streams, generally eat ...