Why Isn't My Tank Cycling? Question

  1. Esli

    Esli Valued Member Member

    I have done 2 major water changes yesterday, and today because my tank has been at super high nitrites and nitrates for a week now. And they dont seem to be going down, can anyone tell me why ?
    This is going on to the 4th week of cycling.
    The third week nitrites and nitrates were present, super high. My ammonia is being processed under 24 hours, maybe even less.
    My tank is a 125 gallon.
     

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  2. AquaticJ

    AquaticJ Well Known Member Member

    That’s normal. There are two separate bacteria, one turning ammonia into nitrite (which you have already), and the other turn nitrites into nitrates (you have some). 4 weeks is average, it can be longer, it can be shorter. You’re going to be done real soon it looks like.
     
  3. OP
    OP
    Esli

    Esli Valued Member Member

    Maybe hopefully one more week right? I want to move them to their new home already!
     
  4. AquaticJ

    AquaticJ Well Known Member Member

    I would think so! You’re definitely at the end. What are you dosing ammonia to?
     
  5. OP
    OP
    Esli

    Esli Valued Member Member

    Ive been dosing to between 2ppm and 4ppm.
     
  6. AquaticJ

    AquaticJ Well Known Member Member

    Stick with 2, you’re making about 12 ppm of nitrites when you dose 4 ppm of ammonia, that’s a lot and will make it take longer.
     
  7. OP
    OP
    Esli

    Esli Valued Member Member

    Oh I did not know that! Thank you!!