Complete Water Changes

  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
    OP
    H

    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.