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Cleaning a fish tank?

14 August 2010 4 Comments

When you cleaned the fish tank COMPLETELY out and have the fish in some of the water it was inside a bucket with the bubbler, do you:
-add the dirty water into the clean fish tank with clean chemicaled water
or
-add the clean chemicaled water into the dirty water

which goes first basically....
-

4 Comments »

  • steveko777 said:

    my Dad used to breed discus so I might be able to help you. First off If you have a decent filter you wont have to go through this. he used to run a under-gravel filter and a box-type also. the main thing you need to worry about is not to shock the fish. Think of when you buy-em and float the bag in their—the purpose is to equalize the temperatures–absent the bag you need to be sure the temperatures are pretty close in both waters- if you put them in cold water they can die. Just net em out of the dirty water and put em in if the temperatures are right —no sense adding the filthy water back in- if you are uncomfortable with that–pour them in with as little water as possible.– Get a small Cat-fish-they help keep the tank clean

  • kt said:

    you add the dirty water into the clean water first and then add it to the tank

  • Elizabeth K said:

    Never completely clean out a fish tank.

    It undoes everything. All the beneficial bacteria that breaks down fish waste will be destroyed.

    The bacteria lives in the substrate and the filter media. As it is just add your fish back in with the conditioned water.

    ~In the future do not remove the fish from the tank. Leave them in and gravel siphon about 25% of the water from the tank, and vacuum the substrate.

  • peejay said:

    I don’t think it matters.
    But I usually make it about ten parts clean water to 1 part dirty water. It only needs to be enough to allow the beneficial bacteria to start their good work again ie breaking down the toxic wastes.

    By the way, the famous fish expert, Herbert Axelrod stated that ordinary cooking salt is the best thing to clean out the empty tank with -it kills all bacteria, but rinse it out thoroughly.

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