How long do fish live? How many years do fish live

It depends on what kind of fish, I've been raising it for more than a month, it's okay, trouble, thank you!

In general, the lifespan of a fish is related to its individual size and age of sexual maturity. The larger the fish, the later it matures and the longer it lives. From this point of view, the world's largest fish, the whale, should live the longest.

Unfortunately, so far nothing is known about its lifespan. It has been reported that the eagle that lives in the Caspian and Black Seas can weigh up to 1,500 kilograms and have a lifespan of more than 100 years; The white sturgeon in the Yangtze River in China has a lifespan of nearly 100 years. Many small fish, such as freshwater fish False Tiger Fish, Herring Turtle, and Whitebait, have a lifespan of only about one year.

Although the lifespan of fish varies greatly between species, the vast majority of fish live between 2 20 years, of which 60 percent are concentrated in 5 20 years, and no more than 10 percent of fish can live beyond 30 years, and only 5 percent of fish live less than 2 years. Among the freshwater fish in China, the life span of silver floating fish: anchovy, red fin white, copper fish, yellow catfish, silver carp, and sand snakehead is between 2 and 4 years; The lifespan of herring, grass carp, silver carp, bighead carp, crucian carp, bream, red fish and mandarin fish is mostly 7 to 8 years, and some can live for more than 10 years.

Marine fish have a shorter lifespan. In addition, the lifespan of the same species of fish varies depending on the environment. For example, the large yellow croaker can live for 29 years in the coastal areas of Zhejiang, while in the coastal areas of Fujian and Guangdong, it usually has a lifespan of only 17 years, and in the eastern waters of Hainan, it only lives for 9 years.

The lifespan of most fish is concentrated between 2 to 20 years.

The lifespan of a fish is related to its individual size and age of sexual maturity. The larger the fish, the later it matures and the longer it lives. Although the lifespan of fish varies greatly, the vast majority of fish live between 2 20 years, of which 60 per cent are concentrated in 5 20 years, and no more than 10 per cent of fish survive more than 30 years, and only 5 per cent of fish live less than 2 years.

There are many types of fish, and the lifespan of different species of fish is also different. Among them, the lifespan is relatively long, such as whale sharks, which can live for about 70-100 years, ordinary sharks can live for 30 years, many large ornamental fish, such as Arowana, can live for more than 10 years, monk fish can only live for 5-6 years, and small fish have a shorter lifespan, generally only 2-3 years.

The habits of fish

1. I like to be quiet and afraid of being disturbed

In the waters where fishing is frequent, the fish are very sensitive to the movement on the shore, and once they feel abnormal, they will quickly flee or dive to the bottom, we call this kind of fish "startling fish", and they will not eat even the best food.

2. I like cleanliness and am afraid of pollution

The quality of water quality not only affects the appetite of fish, but also directly affects the survival of fish in the medium and long term. Industrial wastewater and domestic wastewater can have catastrophic consequences for fish.

3. Like warmth, afraid of cold and heat

Plants rely on photosynthesis for growth, and fish also need sunlight to grow, and fish grow faster in sunny waters than in perennially shady waters. Except for cold-water fish (such as sturgeon) and hot water fish (such as tilapia), fish prefer warm water, 15-25 degrees is the best living temperature for fish, above 30 degrees, below 5 degrees, fish rarely exercise, rarely forage.

Fish can live up to 400 years.

First of all, how long do fish live, there are obvious differences in the lifespan of different species of fish. For humans, 40 days is fleeting, but for the medakafish with a body length of only 5 centimeters, it is a life to be cherished, so they are the shortest-lived fish known to date.

The average lifespan of wheat ear fish with an average body length of 7 cm is slightly longer, which can reach 3-5 years; In contrast, the average lifespan of a crucian carp with a body length of 20 cm can reach 10 years, which is considered to be the longest life expectancy among fish.

In terms of the theory of the age of the fish based on their size, the largest fish in existence is the shark whale, which has an average lifespan of between 70 and 100 years, while the Greenland sleeping shark living in the Arctic Ocean has an average lifespan of 272 years and a maximum lifespan of 400 years.

As can be seen from the above examples, the lifespan of fish varies from short to long. In general, fish under 20 cm in length typically live between 1 and 5 years, 20 cm to 3 m in length, and 50 to 400 years in fish over 3 m in length.

Although the lifespan of different species of fish varies greatly, most of them are concentrated between 2 and 200 years, of which 60% are concentrated in 5-20 years, no more than 10% can live for more than 30 years, and only 5% can live for less than 2 years. The lifespan of herring, grass carp, silver carp and crucian carp is mostly 7-8 years. The average lifespan of Japanese koi is about 70 years.

These are all common fish in Jianxiangzao, and their lifespan is relatively easy to speculate.

Hello: As long as you do the following, you can generally live for more than 7 10 years.

It is recommended to keep the fish semi-starved every day, so that the digestion is faster and the fish will be more active!

If the fish excretes yellow, white droppings, it is a sign that the fish has eaten too much. If you exclude black, brown, and green feces, shouting skin means that the feeding amount is just right.

Secondly, it is necessary to pay attention to the following requirements:

1.Change the water once a week and don't change it too often.

2.It is recommended to keep some aquatic plants in the fish tank.

3.Adjust the water temperature to 18-28 degrees Celsius and soak the cherry blossoms.

4.Sprinkle some salt with each water change to prevent disease.

5.Keep the fish semi-starved so that the fish will be more active.

6.If you use tap water when changing the water, expose the water to the sun for three days.

7.Get plenty of sun.

I've been raising fish for 7 years, it's very interesting, and I wish you success in fish farming! o(∩_o

The lifespan of goldfish is related to its feeding conditions and fish physique, and it is generally believed that goldfish only live 6-7 years old, but some people have observed that goldfish can live for more than 10 years or even longer under good feeding conditions. When goldfish show old age, the ornamental value is getting lower and lower, and there is no feeding value.

Koi fish live a long life, with an average age of 70 years. The oldest of them is over 200 years old. Because of its long lifespan, it is regarded as a symbol of good luck, so it is also called a blessing fish.

Of course, they have a lifespan, but the fish that you buy don't live very long.