What kind of fish can be raised in the perennial water temperature of 15 degrees?

It is possible to polyculture a variety of fish, the requirements of the living environment of the fish.

Fish do not have strict requirements for water temperature and water quality. The water temperature in which the fish live is 20-30 degrees. Although fish are highly adaptable to the environment, they have the weakness of not being able to resist sudden changes in water.

The water temperature rises and falls at 2 3 degrees Celsius, otherwise the fish are prone to illness, and when the temperature rises and falls 7 8 degrees, the fish do not eat at the bottom of the water and do not move. If the changes are more severe, the fish will even die immediately.

When the water temperature is 20-25 degrees, the fish swim actively, have a strong appetite, have a strong physique, and are brightly colored. Therefore, it is best to use a heating rod in winter and put it in a ventilated and cool place in summer to control the temperature that is most suitable for the growth of koi, so that the fish can have a comfortable environment and grow rapidly.

Fish need oxygen to absorb nutrients to produce energy to sustain life in the water, so having enough oxygen is the key to fish farming. Note* It has been proven that the higher the water temperature, the more oxygen is consumed.

Fish are also suitable for living in a slightly alkaline and low-hardness water environment.

It depends on what kind of fish you are buying.

Tropical fish need to live in water temperatures of 18-26°C.

Goldfish can be at room temperature.

Cold-water fish should not exceed 15°

1. Water quality regulation.

The fish tank is the place where the goldfish live throughout and cannot be contaminated. In the water, goldfish inhale oxygen dissolved in the water and excrete carbon dioxide. When farming, the harmful substances in the water should not be allowed to invade the fish to avoid getting sick.

For this reason, the water source in the goldfish tank must be high in dissolved oxygen, suitable pH, and free of pollutants. Under normal circumstances, the water source of family breeding goldfish mainly comes from river water, pond water, well water and tap water, etc., river water, pond water and other natural water sources as long as they are clean, non-toxic, non-polluting can be directly added to the fish tank, well water, spring water and other groundwater temperature difference is large, dissolved oxygen is less, may contain minerals, should be exposed to the sun, natural temperature regulation; Tap water contains a large amount of chlorine, which is easy to harm the gills of fish and affect breathing, so it should be dechlorinated, which can be placed in the open air for 2-3 days, or dechlorinated with sodium thiosulfate. The easiest way to raise goldfish at home is to pump tap water into a container such as a tank for a period of time and then use it as a source of water in the tank.

When changing the water in the fish tank, the water from the same source should also be used, and the water can be changed in a small amount to prevent the fish from becoming uncomfortable. Under normal circumstances, it can be once every 3-7 days in winter and spring, and once every 2-3 days in summer and autumn, the water temperature is above 28 degrees, and it should be once a day.

2. Bait feeding.

Goldfish is an omnivorous fish, and there are many kinds of old bait and eggplant materials, mainly including bloodworms, earthworms, small fish and shrimp, egg yolks, tofu, noodles, rice grains, bread, etc. Home-farmed goldfish can be fed their own or purchased as commercial bait. When discussing what kind of bait, we must pay attention to the following points:

First, to make the bait palatable, you can feed granular or strip-shaped bait, not powdery substance, and adjust with the growth of the fish; Complete should be fed regularly, summer and autumn in the morning and evening when the weather is cool, winter and spring can be fed at noon when the weather is warm; Third, to feed quantitatively, goldfish are easy to be gluttonous, each time they are fed eight in eighty full, the best fish tank has no residual bait, you can also take a small amount of feeding principles, hot weather, high water temperature, you can reduce the amount of feeding or not feeding; Fourth, we should diversify the bait, do not feed only a certain kind of bait for a long time, and should achieve a reasonable combination of animal and plant bait to prevent nutrient deficiency.

3. Prevention and control of fish diseases.

Family fish tank breeding goldfish should pay attention to disease prevention, specific measures in addition to frequent removal of bait, frequent water change, but also irregularly with 2-3% salt water.

It depends on what kind of fish you are buying.

Tropical trousers need to live in water temperatures of 18-26°C.

Goldfish at room temperature is simply closed.

Cold-water fish should not exceed 15°