A uv sterilizer utilizes ultraviolet light which targets microscopic organisms like algae parasites and bacteria shortening the life cycle of the organism.
Does uv light kill algae.
The invisible light can kill viruses and pathogens like the one that causes covid 19 but experts are raising alarms about the potential safety risks.
Once killed the algae remains in the tank so the water could stay green.
The uv light has no residual effect and will not kill organisms attached to fish e g adult stage of ich or rocks e g algae.
This light destroys their dna and kills them.
Just to explain what this light does it connects through the plumbing in your pond and the water cycles through the closed tube for the uv light the bulb itself is protected from the water.
Radiation prevents it from reproducing.
Size and type of organism.
By showering algae with ultraviolet rays a uv sterilizer kills algae the same way it kills other microorganisms.
Algae can even affect the health of your fish depending on the type of algae.
In general larger organisms such as protozoa require a higher dose of uv radiation than smaller organisms such as bacteria.
The damage caused to the algae s dna through this light also causes them to flocculate clump together.
Note that the organisms must be in the water that flows to the uv sterilizer.
The single celled free flowing algae within your pond water is then exposed to these high levels of ultraviolet light.
Uv lights work when water from your pond is pumped through their light path.
When operated correctly free floating microorganisms will be killed by the uv light.
The shorter the organism s life cycle the less likely it is to reproduce and cause a problem in your tank.
Other factors include excess nutrients and high light levels.
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Algae can be extremely problematic for both beginner and experience aquarists so everyone can benefit from an aquarium sterilizer.
Theoretically uv radiation can kill viruses bacteria algae and protozoa.