The guppy (scientifically known as Poecilla Reticulata and anecdotally known as the 'million fish' and the 'rainbow fish') is one of the world's most widely owned and traded tropical fish species. It is arguably the most popular freshwater aquarium fish species. Guppies originate from the freshwater streams and rivers of South America but have been introduced to many different habitats across the world. They are highly adaptable and hardy fish and...