Complete Water Changes

Discussion in 'Aquarium Water' started by Heron, Jun 19, 2018.

  1. H

    Heron New Member Member

    I have been reading a number of books about keeping freshwater fish and there seems to be a conflict of advice when it comes to complete water changes. Some books say you should only completely clean a tank and replace all the water in cases of extreme disease or water quality issues. But other books suggest this should be done annually. Can anyone suggest whether I should do this to a generally healthy tank?
  2. S

    Sion Valued Member Member

    A complete water change sounds like a really bad idea. It's bound to stress out any creatures in the tank. You'd probably kill any really sensitive animals
  3. OP

    Heron New Member Member

    Thank you. You have confirmed what I thought. It seems unnecessary to stress perfectly healthy fish.
  4. 75g Discus Tank

    75g Discus Tank Fishlore VIP Member

    In extreme emergencies, I would only recommend doing a 50% daily for a week.

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