Bill, what you reproduced below is how I learned the do it. However John has changed it a bit on his site to say to treat the receiving tank and not the bag. just get the fish out of the bag and into the receiving tank asap. I have paraphrased a bit. The correct page address is: http://petsforum.com/aquascience/APInfo/Acclimate.htm Scotty ***********ORIGINAL MESSAGE *********** On 10/5/01 at 9:02 AM William Vannerson wrote: <SNIP>Traditional wisdom has it that you must float fish bags in your tank for thirty minutes, mix bag water with tank water, and then tip the bag over and allow the fishes to swim out on their own. I prefer, however, a radical departure from this technique that has been successfully championed by FISHNET member and aquacultural chemist John Kuhns. John's "dose and dump technique," which aims to get the fish out of the bag and into the tank as soon as possible, seems preferableany time there are not dramatic temperature differences between bag and tank water. The method is simple: Add a little quirt of NovAqua water conditioner to the bag, add the appropriate dose to thee tank, remove the fishes from the bag, and dump them into the tank. ------------------------------------------------------------------------- This is the apistogramma mailing list, apisto@listbox.com. For instructions on how to subscribe or unsubscribe or get help, email apisto-request@listbox.com.