1, salinity is stable.
In the early stage of preparing seawater, we should pay attention to the ratio of salt to water. We only need to pay attention to the proportion of 30 liters of seawater per kilogram of seawater salt. After the aquarium is in operation, the water will evaporate, so the salt concentration will increase relatively. At this time, we should not ignore it. We should add fresh water to the aquarium every once in a while to maintain the stability of salinity in the aquarium and ensure the healthy growth of fish in the aquarium.
2. Stable PH value
The PH value in the aquarium is very important. After the operation of the aquarium, the PH value will drop, which will seriously threaten the life of fish. It must be tested regularly to avoid the deterioration of water quality and lead to fish discomfort and infection.
You know, most of the common diseases of ornamental fish in seawater are infected because of excessive changes in pH, so the pH of fish tanks is the most important.
3, local water change on a regular basis
In order to keep the sea clean, it is necessary to change the water in the fish tank from time to time, but not all the water is changed when changing the water. Only change 10% water at a time. When changing water, slowly inject the fish into the fish tank with a thin tube to prevent the fish from dying because they can't adapt to the sudden change of water.
4. Circulating water flow
Because nitrifying bacteria in fish tank need to consume extremely high oxygen in the process of nitrification, how to send enough oxygen and organic matter to be decomposed into filter materials evenly in the process of water circulation is an important consideration in the design of circulating water flow.
Therefore, most fish tanks use the principle of circulating water to decompose organic matter.