How can we keep the water clear when raising fish without changing the water?

The water quality of the fish tank directly affects the health of the fish, so it is very important to keep the water quality clear during fish farming. If the fish water is not replaced in time, the water quality can be stabilized by increasing oxygen and the biological community at the bottom of the fish culture. Here are a few ways to raise fish without changing the water, so that your fish tank can be kept healthy!

1. Use a filter device

A filter is an essential piece of equipment in the fish farming process. The main purpose of installing a filter is to filter out fish feces, fish food residue, ammonia and other harmful substances to keep the water clear and transparent. If the fish tank is large, it is recommended to use an external filter, because the external filter has a larger filtration capacity, can ensure sufficient water flow, and is easy to maintain internal hygiene.

2. Regular oxygenation

The oxygen content will affect the clarity and stability of the water, so the fish tank needs to be oxygenated in the form of mechanical or biological oxygen within a certain period of time. . Regularly increasing oxygen is beneficial to the suppression of adverse substances and the positive growth of bacterial flora. Under normal circumstances, increasing oxygen about three times a day can stabilize the water quality of the fish tank.

3. Control the number of fish

The number of fish in the fish tank cannot be too many, which is a prerequisite for keeping the water quality clear. If there are too many fish, there will be more harmful substances in the water, and the fish tank will soon suppress the bacterial flora and make the water quality worse. Therefore, when raising fish, the number of fish should be controlled according to the fish tank and the size and habits of the fish. It is recommended to control the fish density at 1 liter/fish to ensure clear water quality.

4. Extend the feeding cycle of fish

Feeding fish is also an important factor affecting water quality. Overfeeding will lead to poor water quality and increase pollution, while longer feeding times will allow fish to adapt to their environment, while reducing pollution and making the water clearer.

5. Regular fish tank sanitation

Regular fish tank sanitation is one of the important means to maintain water quality. Regularly remove debris from the bottom of the fish tank, clean the filter screen of the filtration equipment in a timely manner, clean the water changing tools, etc. This regular maintenance can increase water flow and oxygen content, which is very helpful in optimizing and maintaining water quality.

It should be noted that even if the above methods are used to maintain the water quality of the fish tank, fish farmers still need to check the water quality in the fish tank regularly and replace the water in time. Under normal circumstances, it is enough to change the water every two weeks to one month. The best time is based on the changes in water quality in the fish tank and the status of the fish. The time to change the water is selected according to the actual situation. Combining the above methods, you can always maintain clear and transparent water quality in your fish tank, allowing the fish to grow healthily.