How long does a good fish live?
On average, fish can live anywhere between a year to 200 years depending on the size and species of the fish. Whether they live in the wild or in captivity will also play a role. For example, the majority of wild freshwater fish average anywhere between 1 to 10 years of life.
Can fish live for 4 years?
Betta fish lifespan. Betta fish on average live to be 2-4 years old. The length of your betta fish’s life is directly related to the environment you keep them in. By maintaining a clean tank and watching their diet, you can help them live a longer life.

How long can a goldfish live?
Goldfish have a lifespan averaging about 10-15 years, with some varieties living up to 30 years when provided with proper care. Unfortunately, many goldfish do not reach their lifespan potential due to inadequate housing conditions.
How long does a glass aquarium last?
Glass tanks have a lifespan of seven to ten years on average. Every once and a while, you hear about someone with a fifteen year old tank, but it’s not very common. Re-sealing can be done by yourself, but the tank must be taken down and emptied. An acrylic tank should last for a long, long time.
What is the maximum age of fish?

The life-span may be short, intermediate and long. Whereas the lowest range of life-span (1-2 years) is exhibited by some species of lampreys and teleosts, there are species of dogfishes, sturgeons, paddlefishes, rockfishes and eels which have the life-span (70-152 years) in the highest range.
When should I replace my aquarium?
Replacing Aquarium Tanks Fish tanks don’t need to be replaced unless they are faulty. With regular maintenance and repairs, a fish tank can be used for decades. Any problems that arise, such as a sealant leak or scratched or broken glass, are usually fixable – though they can be expensive or time-intensive.
What is the oldest fish alive?
The oldest fish in the world is the Greenland shark, with a 392-year-old female specimen being the oldest ever discovered. With a lifespan of at least 272 years, Greenland sharks are now the longest-living vertebrates known on Earth, according to scientists.
Can fish live for 100 years?
The coelacanth — a giant weird fish still around from dinosaur times — can live for 100 years, a new study found. These slow-moving, people-sized fish of the deep, nicknamed a “living fossil,” are the opposite of the live-fast, die-young mantra.