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View Poll Results: How did you start your new aquarium out?

4. You may not vote on this poll
  • Adding old media

    3 75.00%
  • Starting fresh

    1 25.00%
  • N/A

    0 0%
Results 1 to 7 of 7
  1. Default Should I use existing filter in new tank?

    0 Not allowed!
    I have a biological filtration filter in my old tank but, still have a betta fish in there. So should I put 1 old filter and 1 new filter in my new tanks filter cartridge?

  2. #2


    0 Not allowed!
    You are upgrading your filter?

    Yes, you can put existing filter media into your new filter to "seed" the new media with beneficial bacteria. The betta will continue to provide ammonia to "feed" the existing bacteria and help grow new stuff in your new filter.
    46 gal fw tank with black skirt tetras, neon tetras, spotted corys, green corys, 1 guppy, cherry barbs, otoclinus, snails & 4 amano shrimp - plastic & live plants
    5 gal QT with green corys & 2 guppies

  3. Default

    0 Not allowed!
    No, I got a new tank with new filter and cartridge.

  4. #4


    0 Not allowed!
    So, you want to run your new filter on the new tank and put a cartridge from your existing tank in the new filter - what will you use for ammonia to "feed" the existing bacteria and grow new ones? You are doing a fishless cycle I assume.
    46 gal fw tank with black skirt tetras, neon tetras, spotted corys, green corys, 1 guppy, cherry barbs, otoclinus, snails & 4 amano shrimp - plastic & live plants
    5 gal QT with green corys & 2 guppies

  5. Default

    0 Not allowed!
    Yes, I'm doing a fishless cycle with pure ammonia.

  6. #6

    Join Date
    Jan 2009
    A little further from sanity

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    0 Not allowed!
    Alright, we are going to need more information from you to give a proper answer. What exactly are you trying to do?
    Upgrade your betta tank and the betta will move to the new tank?
    You have a new tank but the betta will stay in his old tank?
    The better answer to your question depends on the answer to my questions.
    When I go fishing I just place a sharp rock in the water and sit there waiting for all the dead fish to float to the top... Kingfisher
    Brutal honesty will be shown on this screen.
    I think my fish is adjusting well to the four gallon, He's laying on his side attempting to go to sleep on the bottom of the gravel.
    Tolerance is a great thing to have, so is the ability to shut up.

    I can explain it to you, but I can't understand it for you.

  7. #7

    Join Date
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    Ontario, Canada

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    0 Not allowed!
    If you are starting a new tank and the old tank has approximately the same bioload as you plan to put in the new tank, you don't need to cycle the new tank at all. Its an instant cycle. Size of the tank doesn't much matter, its bioload.

    How much seeded material (filter media, sand/gravel/deocrations) you can move from your old tank to the new directly affects how much fish you can stock at once. If you have a single betta in your old tank, then you could stock a single betta in a new tank with that media moved to the new tank, and not worry about ammonia poisoning.
    If your old tank had 20 guppies in it, and you moved the filter and some gravel from that tank to a new bigger tank, you could start with 20 guppies or the equivalent, and not worry about cycling, so long as you transferred enough seeded media over.

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