Green water is generally caused by the discoloration of the water body due to too much algae in the tank. As algae is a narrow-salt organism, it is very sensitive to the increase of salinity, so it can be removed by adding salt. Usually, the salinity of the water body should reach about 5% in order to effectively remove algae. It should be noted that algae removal by salt is only for freshwater algae, algae is ineffective, and the fish in the tank need to be fished out before salt, this salinity will also lead to the death of fish.
1, strengthen the filtration: want to make green water clear, the simplest way is to strengthen the filtration. Increasing the power of filtration equipment can improve water quality in three or four days. However, the filter equipment for a long time, there will be blockage, this time need to clean or replace the filter cotton, otherwise the efficiency of algae removal will be greatly reduced.
2. Biological control: Biological control is also a relatively common method of removing algae. Whether it is microorganisms in the water or some algae-eating fish and shrimps, they can be kept in it. They will remove the algae by themselves, but the time is slower. However, mixed culture has certain risks, and some fish only eat algae, no algae will starve to death.
3. Drugs to remove algae: Drugs to remove algae are also relatively common methods, commonly used are glutaraldehyde, copper sulfate, etc., but pay attention to the dosage and concentration, using more will not only remove algae, but also play a certain harm to other organisms in the tank, and even lead to the death of fish.
