can a uv light in on or near a fish tank harm the fish?

Answer 1

UV lights are run as part of the filtration system, but not where it will shine on the fish. It kills parasites and viruses and there are a lot of mixed feelings about the use of it since it will kill beneficial bacteria floating in the water as well. It also only sterilizes the water that passes through it, and the free-floating harmfuls have a chance to reproduce/infect fish before getting pulled through. It is useful is you have a multi-tank system and you want to sterilize the water before it goes into the next tank.
http://www.liveaquaria.com/general/general.cfm?general_pagesid=21&js_enabled=0

Answer 2

a UVA/UVB finished spectrum easy is used to create the right lights for a planted aquarium. no longer basically are the cautioned for a plant tank, they seem to be a necessity. besides the undeniable fact that, in case you have the money, purchase the mercury vapor bulbs extremely, as your flowers will strengthen greener with them. That being pronounced...algae is a plant. flowers do no longer strengthen on water and easy-weight on my own, they decide for food to boot. the reason planted tanks do no longer normally have an algae difficulty is using the fact the bigger flowers take up all the food, competeing with the algae. via fact this creates a organic stability, the algae does not strengthen to extra. wholesome tanks don't have algal blooms. there'll consistently be a small quantity latest, yet algae is a significant purple flag which you have damaging water high quality. now, a uv easy is a sterilizer. commercial fish systems including what's used at PetSmart and PetCo have 6-12 UV sterilizers on the filtration device. the way it works is that a bulb with a retina unfavourable quantity of UV output is placed in a crystal sleeve. The sleeve is water tight and protects the bulb from getting moist. The crystal sleeve and the bulb are then put in a plastc tube that has yet another plastic sleeve interior. the interior sleeve is white and bounces the UV rays back, conserving the outer sleeve for injury from the rays. those bulbs decide for replaced each and every six months, as do all UV bulbs, as they degrade over the years. those sterilizers help injury blue green algae, diatoms, paracites, and microrganisims interior the water (via fact the others reported above). Tetra pond makes one for algae administration that usually retails at $ninety 9-119. a clean co (can not think of of the call) makes one for domicile aquariums that cost out at approximately $50.

Answer 3

depends on the fish...

UV lights are used in tropical fish tanks to help keep the water clean...

"a high intensity electrically operated Ultraviolet (UV) bulb is located inside the unit's wet chamber. This UV bulb gives off Ultraviolet light (UV) wave emissions when lit. The bulb's operating emission range is within the Ultraviolet light (UV) wave spectrum at 253.7 nm of wavelength. This wavelength is such that when bacteria, protozoa, viruses, algae spores, or other single celled waterborne microorganisms in the incoming water flow are exposed to the light waves of the UV bulb or one second or more exposure time, the DNA of the microorganism is altered or disrupted, which controls and eradicates these unwanted contaminates and renders them harmless."

From a commercial companies website that I do not wish to name for advertisement reasons...

Answer 4

Not if the UV light is placed outside the tank as glass blocks UVA and UVB light.

Answer 5

Probably only really sensitive fish but I would check to make sure!

Answer 6

only if they are fish that live on the bottom of the ocean.

Answer 7

not with the fish but please be careful of your uv light

Answer 8

Maybe it can harm but not for sure!!!

Answer 9

no it shouldnt hurt them