M.H Posted October 11, 2010 Share Posted October 11, 2010 just a question is a uv steriliser needed or not at the moment i got a pondmaster 18w uv steriliser but was thinking of taking it out just wanna know does it do much Link to comment Share on other sites More sharing options...
mcloughlin2 Posted October 13, 2010 Share Posted October 13, 2010 Well it depends. What sort of system are you running? Surely you would realise no one can help you if you don't state whether you have a marine or freshwater, pond or aquarium, display tank or holding tank etc. Give us more information if you want us to help. Link to comment Share on other sites More sharing options...
M.H Posted October 13, 2010 Author Share Posted October 13, 2010 ok its a freshwater display tank and im running a sump Link to comment Share on other sites More sharing options...
CThompson Posted October 13, 2010 Share Posted October 13, 2010 A UV steriliser will kill (dependant on UV strength, flow rate and distance) what passes through it. It's need is probably dependant on the fish you are keeping (hardy or delicate), and your desire for the bells and whistles. Link to comment Share on other sites More sharing options...
mattrox Posted October 13, 2010 Share Posted October 13, 2010 In my view a UV sterilizer does not allow fishes' immune systems to be exposed to pathogens. Therefore they do not have the chance to build their immune system. Eventually they encounter something that will harm them. Eg when the UV lamp needs replacing down the track and stops killing things, then the fish are suddenly exposed to something new. Good tank maintenence is not replaced by UV. Link to comment Share on other sites More sharing options...
killiguy Posted October 13, 2010 Share Posted October 13, 2010 In my view a UV sterilizer does not allow fishes' immune systems to be exposed to pathogens. Therefore they do not have the chance to build their immune system. Eventually they encounter something that will harm them. Eg when the UV lamp needs replacing down the track and stops killing things, then the fish are suddenly exposed to something new. Good tank maintenence is not replaced by UV. Well said Mattrox.Certainly bad news when raising fry.Adults that have previously been in normal conditions should have an experienced immune system but Id still never use one with freshwater fish Link to comment Share on other sites More sharing options...
M.H Posted October 13, 2010 Author Share Posted October 13, 2010 i do keep african cichlids i manage to keep my tank resonably clean how many people do use it and dont use it Link to comment Share on other sites More sharing options...
CThompson Posted October 13, 2010 Share Posted October 13, 2010 In my view a UV sterilizer does not allow fishes' immune systems to be exposed to pathogens. Therefore they do not have the chance to build their immune system. Eventually they encounter something that will harm them. Eg when the UV lamp needs replacing down the track and stops killing things, then the fish are suddenly exposed to something new. Good tank maintenence is not replaced by UV. Sorry I don't agree with this mattrox. If you could keep the whole tank sterilized with fish in it, that's one thing, but a UV can't do this, and its ability to eradicate white spot (in its free swimming stage) for example won't weaken the fish in the future and make them more susceptible to white spot. Link to comment Share on other sites More sharing options...
mattrox Posted October 13, 2010 Share Posted October 13, 2010 Isn't the white spot 'bug'(paracite) present in small numbers anyway?...... and when fish become unhealthy the become suseptible then the numbers of paracitic oganisms increase beyond a ponit that the fish can fight them off..... If there was an infestation and UV was used to control it, is a different situation than a systematic use of UV. Link to comment Share on other sites More sharing options...
killiguy Posted October 13, 2010 Share Posted October 13, 2010 Virtually all fish infections are opportunistic;bacteria or paracytes that normally live in the environment without causing problems attack the fish in which the immune system has been suppressed(by poor water,stress etc).If that fish has not mounted an immune reaction previously to the pathogen then it can run rampant in the time it takes the fish to crank it up.Allowing the fish low level exposure to the pathogens essentially acts as a vaccination,protecting the fish,to some degree,to future exposure. Link to comment Share on other sites More sharing options...
mattrox Posted October 13, 2010 Share Posted October 13, 2010 In an ideal world I'd set up a 3ft hospital tank dedicated for the purpose and with a filter with UV handy. Then sick fish can be removed and treated in that tank, then after the prescribed course of medication is finished use the UV filter in the quarantine period after the disease, while the fish is recovering. food for thought http://www.aquaticcommunity.com/disease/ich.php "Thirdly, a fish that manages to combat Ich seems to develop some degree of immunity to the parasite. Wild fish that becomes infested by just a few parasites have a greater chance of fighting them off, thereby developing a higher resistance towards new attacks. In an aquarium where a fish might be attacked by hundreds of parasites at once, its chances of successfully fending them off and developing immunity is much less ." Link to comment Share on other sites More sharing options...
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