Nightlights + Uv Filters Advice And Opinions

[swanseastilo]

riffraff - which LED's have you got??

My link

thems the ones

riffraff

All you need now is some tunes playing and you can have a disco in the fish tank.

 

[TwoTankAmin]

and thats ignoring the fact that, Sterilizing a tank totally, is the last think we want to do. after all, the Bio film (covers all surfaces in a mature tank) is built from different bacteria and living organisms.
yet even UV protected (lol) tanks develop a bio film. proof, if it were needed, that UV simply doese not do what it says on the box.

Once again pseudoscience strikes. A UV unit does not kill anytbing but bacteria that is free floating in the water. Because the nitrifyiers attach and cover themselves with an EPS, they are not effected by a UV sterilizer. Again scientifically documented fact.

Nobody has ever maintained that a UV unit was a requirement for a fw tank. But that is a far cry from saying they have no use in FW. And it is simply false to say they do not work. One of the best uses of UV in fw systems is on a Q tankor and H tank.

However, anybody who claims that UV can not kill bacteria and even viruses in fw needs to do some more research. I could list an awful lot of research studies that says that it does.

Try this one for a start http/www.medwelljournals.com/fulltext/?doi=jest.2011.73.78 or going back a few decades this abstract http/www.nrcresearchpress.com/doi/abs/10.1139/f77-183

 

[Tizer]

So to sum it up for Ben we cold just say its not worth the effort, really.

 

[TwoTankAmin]

There are some perfectly good reasons why UV units are not commonly used on fw tanks. They have to do with the negatives outweighing the positives. While they can and will help control green water, bacteria and even viruses, they will do other things when run 24/7 that many of us do not want.

1. They tend to breakdown fish meds. So to treat a tank with a UV unit, it must be shut off.
2. They also must be shut off if one is using bacteria in a bottle to seed a tank. Until the bacteria are firmly attached to a hard surface, they can be killed going through a UV unit.
3. Unless one has a specific need for one, they cost money, use electricity and take time to maintain. (You usually need a powerhead to act as circulations as most canisters will flow too fast counteracting any potential benefits due to lack of adequate exposure time to the UV.)
4. There is some evidence that they may negatively impact the plant additives many of us use.

I have never disagreed with the argument that most fw fish folks have no need for a UV unit and in most cases the costs outweigh the benefits. However, this does not mean that they do not work/perform the function of sterilizing as stated in the research.

 

[Samuran]

*like*

heh