How long can goldfish stay alive from not eating?

Goldfish can survive for several weeks without food, but it depends on several factors:

* Size of the goldfish: Smaller goldfish have a higher metabolic rate and will deplete their energy reserves faster.

* Water temperature: Cold water slows down metabolism, allowing goldfish to survive longer without food.

* Overall health: A healthy goldfish with good reserves will last longer than a sick or stressed one.

General Estimates:

* Small goldfish: 1-2 weeks

* Medium-sized goldfish: 2-4 weeks

* Large goldfish: 4-8 weeks

Important Notes:

* This is a general guideline, and individual goldfish may vary.

* While they can survive for a while without food, it's crucial to feed them regularly for optimal health.

* Prolonged periods of starvation can weaken their immune system, making them susceptible to diseases.

If you are going on vacation, it's best to arrange for someone to feed your goldfish or use an automatic feeder.