The goldfish is technically a member of the carp family and they grow to an average of 7-10 cm (2.8-3.9 inches) in length, with some varieties living up to 30 years if provided with proper care. Unethical practices such as deliberate breeding for desired colours and stops for selling can cause deformities which reduce their average lifespan.

If you’ve never owned a goldfish before, you’re probably wondering: “How long can goldfish live?” The answer depends on many factors, including feeding, tank size, and environment. Keep reading to learn more about these fascinating fish! They can outlive most household pets, and a 20-gallon tank is the perfect size for them. But before you purchase a goldfish, make sure you understand some basic information.

How long can Goldfish Life

When given the right environment, goldfish are capable of surviving without food for up to ten days. In such circumstances, they will use alternative sources of food like algae and frozen food craps. But even goldfish can become poisonous if their environment is contaminated. This is why proper filtration of goldfish ponds is essential to their survival. Unfortunately, not every pond is designed to maintain the proper filtration of water for goldfish.

 Can goldfish live 20 years?
Can goldfish live 20 years?


In a suitable environment, goldfish can survive up to 2 weeks without food. In a food-deprivation situation, they will find alternative sources of food, including algae and frozen food craps. The enemy of goldfish survival in a pond is poor water sanitation. However, if you’re going on vacation, it is best to make alternative arrangements. Shaggy and Daphne survived without food for a couple of days.


The environment for how long goldfish can live is a key factor in maintaining the health of these beautiful fish. Goldfish are hardy animals and live for anywhere between six and twenty-five years. Depending on the variety, they may even reach fifteen years of age. The lifespans of goldfish are affected by changes in the environment, such as water temperature and dissolved oxygen. It is important to choose the right goldfish tank and care for it properly to ensure a long and healthy life for your pet.

Aquarium size

If you’re looking to keep two goldfish, you’ll need an aquarium size that can accommodate at least 40 gallons. You can add another goldfish to your tank, but you can’t go above this size. In terms of length, you’ll need an aquarium at least 3 feet long. An L-shaped aquarium is the ideal shape for two goldfish. An L-shaped aquarium has more surface area for your fish to breathe, while still being relatively shallow.

how logn can goldfish live
how logn can goldfish live


The first question you might have is “how long do goldfish live?” Goldfish’s life spans are quite variable, but the answer to this question is much more complicated than you might think. Unlike other aquarium fish, the life span of Goldfish depends on a number of factors, and

understanding what makes one species live longer than another is critical for optimal care. Read on for tips on filtering how long goldfish live.

The average lifespan of goldfish is 10-15 years. While some can live much longer, most die well before their expected lifespan due to poor housing conditions.

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