Can you show me proof of this? What study showed that Ich is always in a system, even when it was never introduced in the first place? I can think of a few studies (Noga, Gethill, and a few others) that showed just the contrary.
Listen, It should not matter if the fish in the LFS had Ich, a lot do! If you were to see a spot on ANY fish in a LFS tank, then you know that ALL the fish have been exposed. I have NEVER been to an LFS in this city and not seen Ich in their tanks. (I have not looked close at SWC yet, So Sal you are safe for now!
) So assume that ANY fish you get from a LFS has been exposed and handle the situation accordingly. QT, Dip, don't buy. Whatever your choice is, just know the truth. Now, this is not to say that Lee is not right, there are plenty of tanks that have Ich and the fish live long and healthy lives. It is just the fact that I HATE misinformation on the subject. So know the truth and make your own decision.
[/QUOTE] You just proved it yourself in your last paragraph. I personally take alot of studies as well as statistics with a grain of salt. For every study that "proves" something there is a study that "disproves" it also. Just look at the global warming debate. Also almost all scientific studies are done in sterile environments which dosn't equate to the real world. Just ask any scientist or engineer if even though that math works will it always work in real life. this is why I dont site studies and just speek from my expierience that I have gathered in the 20 plus years I have done this. There is still alot we dont know and at best, most of these are theory's. Just like you stated almost every LFS has ich in there system. So unless you are treating everything you put in your system including LR then chances are its in your system. So call it misinformation if you like but that has been my expierience.
I am in no way saying that studies dont provide really good info, but I believe you just have to take what you can get out of it then come to your own conclusion. I am a firm believer in a QT and that reducing the amount of stress your fish has getting introduced into a new environment and while its inhabiting your system does more than anything to help prevent outbreaks.