First, the benefits of adding salt to the fish tank:
1.？ Stimulate the physiological regulation function of fish (as mentioned in the previous paragraph) and enhance immunity; ?
2. Enhance the fish's vitality and appetite, make it more energetic and stabilize the fish's mood;
Second, the disadvantages of adding salt to fish tanks:
1. Make the body pale; ?
2. Improper and excessive salinity control will cause dehydration and death of fish; ?
3. It is unfavorable to the growth of aquatic plants, which will make plants seriously dehydrated and cause yellowing; ?
4. The water with salt is less transparent, less clear and slightly yellow. ?
Third, matters needing attention?
1. All the above statements are crude salt, not refined salt (edible salt). ?
2. The high iodine content in refined salt is unfavorable to the growth and development of fish; If it is urgent to treat sick goldfish with refined salt instead of crude salt, it can be dissolved in a small amount of water and heated to remove iodine. ?
3. When taking a salt bath, you should first dissolve the salt with a small amount of water, and then pour it into the fish tank or pool evenly. ?
4. If the fish has an emergency phenomenon (sinking to the bottom or shortness of breath), it should be diluted with water immediately. ?
Salt water with a concentration above 5.0.5% will be harmful to aquatic plants. ?
6. If the salt concentration per liter reaches 3%(30g), which is equivalent to the concentration of complete seawater, the salt concentration is estimated by weight.
Fourth, summary?
Although adding salt can play a certain bactericidal role, its role is only to control the flow of water between animal and plant cell membranes through the concentration of salt in water (osmotic pressure), so that a large number of bacterial cells are dehydrated and die. But generally speaking, for goldfish, the concentration of salting bath in fish tank is between 0. 1% (one thousandth) and 0.3% (three thousandths), which can prevent diseases and inhibit bacterial reproduction.
If parasites are removed, the concentration can be increased to 0.5% (five thousandths), that is, 1g~5g salt is added to each liter of water. In addition, my experience does not recommend using salt bath to treat traumatic ulcer wounds.
In fact, the effect of treating white spot disease and water mold is not very good in practice, but as a necessary procedure for new fish to quarantine in tang qian for the first time, it is a good method to soak in salt water to drive away parasites and other disinfection.
Extended data:
Koi fish (Cyprinus carpio haematopterus) belongs to CYPRINIDAE, which is the largest family of all fishes, with more than 400 species of/kloc-0. It is a kind of advanced ornamental fish popular in the world today, and has the reputation of "living gem in water" and "swimming art". It is praised and loved by people because of its low requirements for water quality, miscellaneous eating habits and easy reproduction.
Koi fish, also known as the original species of Fei koi fish, is the red carp (Cyprinus carpio). Red carp, as an ornamental fish, was very popular in Ming Dynasty. It is said that koi fish originated in koi fish, Longzhou, Xingguo Red Carp, Hangzhou Golden Carp, Zhejiang,
It was introduced to Japan from China in the early stage, and after long-term artificial breeding by the Japanese people, there are now more than 100 varieties. According to documents, koi fish was first raised and watched by Japanese nobles in a pond, which is rare for civilians. Originally called Fei carp, color carp and flower carp, it was renamed koi fish after World War II. 1973 As a friendly envoy of the Chinese and Japanese peoples, japanese koi settled in China. Japanese boys' day also hangs the "carp flag", which shows the Japanese love for koi fish.
Koi fish originated in China, flourished in Japan, and then returned to China, which can be described as a process of "export for domestic sales". Nowadays, koi fish is loved by more and more people for its unique masculine beauty, and even known as the "king of ornamental fish".
Koi fish is an advanced ornamental fish, which is very popular in today's world. It has the reputation of "a living gem in water" and "a work of art that can swim". Because of its low requirements for water quality, miscellaneous eating habits and easy reproduction, it is welcomed by people.
Koi fish, which originated in Central Asia and was later introduced to China, was selected by the court technicians in ancient China according to the method of breeding goldfish and golden crucian carp. It was introduced to Japan in modern times and carried forward in Japan. Japan has cultivated many excellent varieties, so many koi fish are named after Japan. It is the national fish of Japan, and is known as "the living gem in water" and "the king of ornamental fish". Koi fish has a strong physique, bright colors, changeable patterns and beautiful swimming posture, which is of great ornamental and breeding value. Its body length can reach 1- 1.5m, and its life span is extremely long. Can live 60-70 years (according to legend, koi fish is 200 years old), which means good luck and is said to bring good luck to his master. It is a popular feng shui fish and ornamental pet.
Reference materials; Encyclopedia-koi fish