What the ultra violet light does is reduces the pathogens in the water and prevents algae growth once killed. It denatures all bacteria after passing through the unit and will remove the green tinge in water. It is an essential piece of equipment need for a successful, healthy aquarium or pond. It is a good way to limit algae without using any additives or treatments. It will also kill parasites in aquariums with diseases.
Modified on: Tue, 9 Apr, 2019 at 10:50 AM
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