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Message: <blockquote data-quote="Jay Hemdal" data-source="post: 7981939" data-attributes="member: 156390">OK, lots to break down here.  You're correct in that a missed diagnosis could be responsible for the losses after using prazi, but *if* the fish died 24 to 48 hours after the dose and *if* the water got cloudy, then without a DO meter, you should still keep that open as a cause.  Do NOT use alcohol to disperse prazi - the solvent serves as a food source for the bacteria, which then strips oxygen from the water.  I disperse prazi powder through a brine shrimp net.  Trying to clear a tank of a disease organism with a high dose of copper isn't recommended....since that is really never done, there is no confirmed dose to use for that.  You can use bleach or freshwater/air drying but of course, then you'll have to reestablish the biofilter.  One bit of advice - for some reason, people have begun treating their new fish with prazi or GC first, then copper.  It needs to be the other way around, copper takes care of more of the acute-death issues, while prazi helps with the more chronic issues like flukes.  I keep hearing about people who lose fish due to Cryptocaryon or Amyloodinium because they haven't added copper yet.  Also, the idea of adding copper slowly has gotten out of hand - people are ramping it up so slowly, that the protozoans have a chance to get started up.  All of these heavily chelated coppers are better at preventing acute outbreaks than they are stopping them.  I never take more than 48 hours to reach full copper levels, and that was back when I used ionic copper.  For Coppersafe, I just dose it all at once.  Think about wholesalers and dealers who get new fish that go immediately into full copper, right after acclimation....Jay</blockquote>

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