thanks, I was just wondering. I have heard other people/hobbyist say the same thing as you. ie....give it a fish free time. (the times all differed from a week to 3-6 months) and if all looked healthy do a hot water rinse and put them in (not hot enough to cook). Kathy On Sat, 8 Feb 2003, steev ward wrote: > > > >or would you > >let it be longer for bacteria. > > There are exceptions, but some fish-pathogenic bacteria are actually difficult > to culture in-vitro. More importantly, as was mentioned during the height of > the > anthrax threat, there is a lower limit to the number of disease organisms > needed > to cause disease. > > Obviously when you have an outbreak of a very contagious disease like Ich or > Velvet you'd want to be very careful about spreading it by passing out samples > of water (especially since these two diseases have an encysted reproductive > phase). I'm just saying that, statistically, when plants are taken from tanks > of > fish that are even moderately healthy there is only a low probability of > passing > a disease along. Most of these parasites work very hard at finding and staying > on fish. There are differences for each disease of course. > > Steev >