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.

Quartz and Cocoa are thriving together in a 36-gallon bow front, enjoying sand foraging, smooth wood décor, and a calm goldfish-friendly setup.