At 10:57 PM 12/9/99 -0500, you wrote:
>I know I have not been around lately but this does not mean I have left the
>hobby.. In fact I have been very proud of my Rainbow collection. I have a
>really nice 265 gallon multi-species community tank.
>
>This brings me to my reason for writing...
>
>The other day I had a mature Rainbow die it was at least 4 years old with
>not outside lesions noticable paracites etc... then in the span of 3 days 7
>more mature rainbows died for no outward noticable reason. In fact one
>died with me watching it went to the surface took what looked like a gulp
>of air and died and floated to the bottom. I was able to have a friend
>help me with a post-mortem and we noticed nothing strange, gills red and
>normal sized, liver normal color and size, it had recently eaten and under
>the microscope we saw nothing.
>
>Please keep in mind this is a very diverse tank I have at 150 fish in it
>and it is very heavily planted. ONLY the Bows died!!!
>
>Some external things that were done prior to the deaths... The day before
>the fish strated to die I replaced all the water tubing from the filters
>and cleaned the filters throughly. The stupid thing I did on the same day
>was add 6 new Corys to the tank from, a store I buy from all the time, I
>did add the water the fish came home from the store with... The food I use
>is the same food I have used for years... So why did ONLY the Bows die?
>
>Sorry for the long post but....
>
>Happy Holidays
>
>-Larry
>------------------------
>Larry Stein
>301-924-0824
>
>