Is a 5-Gallon Tank Enough for Goldfish?

I’m thinking about adding a goldfish to my busy family home, but I’m curious if a 5-gallon tank would be suitable. I’ve heard conflicting opinions on the right tank size for goldfish. Since these fish can grow quite large and produce a significant amount of waste, I want to make sure I’m providing them with a proper environment.

Many people recommend at least a 20-gallon tank for goldfish, but I’ve seen some keeping them in smaller setups. Has anyone successfully raised a goldfish in a 5-gallon tank? How did you handle water quality and the health of your fish? I’m eager to hear your experiences and insights!