Guppies are one of the most popular freshwater fish in the world—and for good reason. Learn why these colorful, active fish have captured the hearts of aquarium hobbyists for generations.

Fancy goldfish are beautiful fish, but they produce a huge amount of waste and require stronger filtration than many people realize. In this aquarium maintenance video, I upgraded a struggling goldfish tank’s filtration system, improved circulation, and cleaned out heavy buildup to help create a healthier, more stable environment long-term.