How soon can I return My tetras to their tank after a water change. I have changed 50% of my tank water and want to know when I can return my fish to the tank.

  • I believe your answer is in this existing question How do I do a water change in my fish tank?, you don't take the fish out, you just take some water out and put new water in. Commented May 14, 2016 at 7:54
  • That depends on why you did such a large water change and why you removed the fish. Were the nitrates too high? What are the parameters now? If your tank was properly cycled, you're running a good risk of recycling it by having removed all of the fish. I'll quit speculating now but you need to provide more information.
    – Gary
    Commented May 14, 2016 at 15:41
  • Thanks. I have discovered that I am getting too anxious with the tank. I think I've got it sort of figured out.
    – Jonathan
    Commented May 14, 2016 at 23:32
  • Jonathan - could you edit your question with some of the extra information you've figured out so it can become an excellent question?
    – Kate Paulk
    Commented May 16, 2016 at 12:14


Browse other questions tagged or ask your own question.