Guppies, or Poecilia reticulata, are rightly considered one of the most popular and beloved aquarium fish in the world. Their hardiness, live-bearing nature, and incredible variety of colors have made guppies an ideal choice for both beginner aquarists and experienced breeders. However, the apparent simplicity of keeping these tropical beauties often leads to mistakes. To ensure a long and healthy life for guppies, an understanding of their biological needs, proper equipment selection, and a competent approach to breeding is required.