What does a UV sterilizer do?

Asked By: Reidun Fauvel | Last Updated: 3rd April, 2020
Category: pets fish and aquariums
4.9/5 (36 Views . 28 Votes)
A UV sterilizer is used to control infections by stopping the spread of microorganisms from one fish/coral/invertebrate to another through the water. It is also used in pond applications to control free-floating algae. When operated correctly, free-floating microorganisms will be killed by the UV light.

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Likewise, do I need a UV sterilizer?

It cannot save fish already sick In order for the bacteria, algae, or parasites to be killed they have to go through the UV sterilizer. However, by using the UV sterilizer you can prevent the spreading of the diseases floating freely in the water. This will help save the fish you love.

Also Know, how long does UV sterilizer take to work? Revolutionary. It should take about 24-48 hours to kill all of the free floating bacteria. Even after that, the water will still be brownish-green(free floating dead algae). Give the UV 24-48 hours, and then do a 50% water change to help pull out the dead stuff.

Similarly, you may ask, how effective is UV sterilization?

The use of UV sterilization, or ultraviolet germicidal irradiation, has been found to be extremely effective. Sources of UV sterilization can kill over 99% of viruses, bacteria, and fungi in an extremely short amount of time.

What is a UV sterilizer for aquarium?

The UV Sterilizer for a fish tank is a water filtration gadget that utilizes a UV light bulb to eliminate microscopic organisms that are floating freely in the water. An aquarium UV sterilizer is an extraordinary device to control the circulation of parasites, algae and other kinds of microorganisms.

22 Related Question Answers Found

Are UV sterilizers worth it?

If set up appropriately, the UV sterilizer will kill the pests you want gone. It will also not kill beneficial bacteria unless they flow through the water. You will not need to worry about your fish either—they may be stressed with the device at first but will grow used to it.

Will a UV sterilizer kill hair algae?

UV sterilizer will only get rid of free floating organisms, it will not affect any algae already anchored to a surface.

Does UV light kill Ich?

A UV sterilizer is used to control infections by stopping the spread of microorganisms from one fish/coral/invertebrate to another through the water. 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).

Does UV light harm fish?

The UV acts as a water sterilizer, killing bacteria and algae. Although generally beneficial, UV light can be harmful in doses that exceed the natural amount of light a wild fish would receive.

How many watts UV Sterilizer do I need?


The unofficial rule of thumb in determining the wattage is 10 watts per 75 gallons water volume for saltwater application and 10 watts for every 150 gallons for freshwater closed systems. In pond application this is greatly increased to 10 watts per 1000 gallons, due to the suns natural capability of producing UV rays.

Will UV light kill brown algae?

Mounting an ultraviolet sterilizer
You can install a UV sterilizer outside the aquarium to eliminate the brown algae. The rays produced by the sterilizer are just like normal sunlight and can't harm fish or plant life but will kill bacteria and algae found in the water inside your aquarium.

Should I use a UV sterilizer in aquarium?

One of the best ways to keep the aquarium clean would be using the UV sterilizer. The UV sterilizer will help with controlling the infections by stopping the spread of any microorganisms in the water. That is not all, as it can still be used to control the free-floating algae that is likely to form in the water.

What is the major disadvantage of UV light as a disinfectant sterilant?

A major disadvantage of UV light as a disinfectant is that the radiation is not very penetrating, so the organism to be killed must be directly exposed to the rays. Another potential problem is that UV light can damage human eyes, and prolonged exposure can cause burns and skin cancer in humans.

How long does it take for UV light to kill bacteria in water?

The average bacterium will be killed in ten seconds at a distance of six inches from the lamp in an American Ultraviolet Germicidal Fixture.

Does UV C light kill bacteria?

UVC light is part of the ultraviolet light spectrum and emits a high frequency of UV light that makes it extremely effective at killing bacteria, viruses, mold and other pathogens.

Can UV cause cancer?

Exposure to UV radiation is the main factor that causes skin cells to become cancer cells. Almost all skin cancers (approximately 99% of non-melanoma skin cancers and 95% of melanoma) are caused by too much UV radiation from the sun or other sources such as solaria (solariums, sunbeds, and sun lamps).

Is UV light effective in controlling microbial growth?

UV light can be used effectively by both consumers and laboratory personnel to control microbial growth. (a) UV radiation causes the formation of thymine dimers in DNA, leading to lethal mutations in the exposed microbes.

Is UV C light safe?

UV Light That Is Safe for Humans but Bad for Bacteria and Viruses. The research team found that continuous low doses of far ultraviolet C (far-UVC) light can kill airborne flu viruses without harming human tissues.

Can sunlight kill viruses?


“There have been past studies to indicate that sunlight and indeed ultraviolet light kills bacteria and viruses,” Schaffner said. “The major takeaway from this study is that even if the sunlight goes through conventional panes of glass, it retains a substantial capacity to kill bacteria and viruses.

What part of the cell is damaged by UV radiation?

Ultraviolet (UV) light kills cells by damaging their DNA. The light initiates a reaction between two molecules of thymine, one of the bases that make up DNA.

What is marine velvet?

Velvet disease (also called gold-dust, rust and coral disease) is a fish disease caused by dinoflagellate parasites of the genus Piscinoodinium, specifically Amyloodinium in marine fish, and Oodinium in freshwater fish. The disease occurs most commonly in tropical fish, and to a lesser extent, marine aquaria.