The analysis is as follows:

1. Buy artificial sea salt for modulation, such as imported brands such as Red Cross and Red Sea. Domestic sea salt is poor in quality stability, so it is not recommended to use it when the money is not bad. The "sea crystal" used for temporary breeding in the seafood market can't be used. Because of impurities, trace elements and other reasons, it is not suitable for long-term breeding of marine fish;

2. The fresh water used to prepare sea salt can be tap water exposed to the sun or pure water, both of which are very good;

3. The proportion of artificial sea salt and fresh water can be indicated by sea salt packaging. Generally speaking, 3-35 grams of sea salt should be added to one liter of fresh water; After gently stirring, pumping air and increasing oxygen, after one or two hours, it can often be used.

1. Due to the complexity and instability of natural seawater, artificial seawater is often used to replace natural seawater in some physical and chemical tests or biological culture experiments in the laboratory.

2. Artificial seawater does not contain suspended matter, organic matter and biological substances, but simulates the concentration of constant components (sometimes including nutrients or other substances with special needs) and is accurately prepared with inorganic salts.

3. Some overseas aquariums often use Backhaus artificial seawater formula to prepare artificial seawater to feed marine life. Through experiments, this artificial seawater has successfully raised many fish (but it has not been tested for invertebrates such as jellyfish, corals and octopus).

4. At present, some countries use "artificial rapid sea salt" to prepare artificial seawater. This kind of artificial seawater retains the organic substances in natural seawater, which is very similar to natural seawater, and can successfully raise marine life.

Reference: Baidu Encyclopedia Artificial Seawater.