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 hobby, and it’s easy ...

My daughter has a near encyclopaedic knowledge of fish: “That’s a molly in there with two platies and a guppy, Dad,” she would say before looking more closely and adding “The guppy’s name is Simon. He ...