In the field of aquaculture and aquarium fish farming, two problems are usually encountered, the reproduction of water algae and fish diseases. The vast majority of algae and bacteria and viruses that cause fish diseases can die and disintegrate within a few seconds under strong ultraviolet radiation. These two problems can be properly solved by ultraviolet sterilization methods.

Through ultraviolet sterilization and purification of the pool, more than 99% of the bacteria and viruses will be killed, so fish rarely get sick, thus increasing the yield of aquaculture, for ornamental fish, clean and sterile water will make the fish more colorful.

The use of ultraviolet sterilization has been more and more widely used.