So, I am not trying to instigate a fight or battle, but I will offer this point of view.
In this hobby, we too many times offer our experiences or what we believe to be science as absolute fact. We all should stop offering these huge, sweeping, and concrete words of advice about stuff that may not be true. In biology and medicine (and this applies for my colleagues in veterinary medicine), there is no such thing as an absolute! And I mean there are NO absolutes. If you look in this very blog/forum, there are a host of posts from people who have systems w/ livestock that have been QTed for months at a time, and they all of a sudden have an outbreak out of the blue w/ no new additions in years. And if it's truly just a parasite of captive fish, it should be a cycle that is all too easy to break. Even more, there are way TOO MANY posts from people who say the only cures for ICH are fresh water dips and cooper. However, Naphthoquinone (the active ingredient in ICH Attack) has been well documented to cure ICH in peer-reviewed, blinded, emperical study. In fact, it is so good at killing single celled parasites like ICH, it is also currently being studied as a cure in humans for malaria (also a single celled parasite).
So what I am saying is that we should stop telling those of us who are young to this hobby (such as myself) all of these absolutes which are more based in mythology and tradition, rather than fact and science... But even as my little post would allude, this is just my belief... b/c remember, there is no such thing as an absolute in biology! :nerd:
So yes, I do indeed believe that ICH is present in all systems. B/c for me, it doesn't make biological sense that it could be any other way.
Love these conversaitions!
Cheers, folks! Continue to press on!