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Results 1 to 3 of 3
  1. Default Yet another cycling question


    0 Not allowed!
    I am now about 4-5 days into a fishless cycle on my 20 gallon tank. I have been dosing the ammonia level up to 4 ppm. The day before yesterday nitrites were at 3 ppm. Yesterday they were at 10 ppm. ! Nitrates continue to remain at between 10-20 ppm. I am a little concerned with my nitrites being that high and it being so early in my cycle. Help is appreciated.

  2. #2

    Default


    0 Not allowed!
    What else did you add to your set-up, anything like some already seeded filter media ? Sometimes you can complete a cycle withing 3 weeks. As it takes the longest to grow the nitrite eating bacteria, you seam to be well on your way for a fast cycle.

    For a 20 gallon tank, you likely could have started with a lower amount of ammonia, but that certainly won't hurt anything. When you start to get nitrites, you should maintain your ammonia level to about 1/2 of what you started out with, and only add ammonia when it drops to 0 ppm, but no more than once a day. If you started out with 4ppm, then you should now maintain the level at 2ppm.
    Last edited by Cliff; 05-01-2013 at 12:48 PM.
    If you take your time to do the research FIRST, you can successfully set-up and keep ANY type of aquarium with ease.
    "Not using a quarantine tank is like playing Russian roulette. Nobody wins the game, some people just get to play longer than others." - Anthony Calfo
    Fishless Cycle Cycling with Fish Marine Aquarium Info [URL="http://saltwater.aquaticcommunity.com/"]

  3. #3

    Default


    0 Not allowed!
    +1 with Cliff - I am assuming that your nitrites were really high like that due to the excessive ammonia you have been putting in there - it's not necessary for that tank size - you are not trying to grow enough bacteria for a 50gal tank!

    It appears your nitrites have spiked and are on their way down to 0 - I would take Cliff's advice and add enough ammonia to get a reading between 1-2ppm. The next day, since you have nitrites, add more ammonia (assuming it has already dropped to 0) - ammonia should not be added until you have a reading of 0.

    By the time your nitrites fall to 0, you will probably need to do a large water change to get your nitrates down to 20ppm (it might be higher than your current reading by then).

    Sounds like you are moving along quickly!
    46 gal fw tank with black skirt tetras, neon tetras, spotted corys, cherry barbs, otoclinus, snails & 4 amano shrimp - plastic & live plants
    5 gal QT
    Remember: Our job is to take care of the water our fish live in

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