Another Cycle Question For The Pros!

Discussion in 'Aquarium Nitrogen Cycle' started by christopherdiehl77, Jul 17, 2017.

  1. christopherdiehl77

    christopherdiehl77Valued MemberMember

    Started a tank and doing fishless cycle. I added seeded media. Ceramic media from another tank of mine. Fast forward 2 weeks and I'm still waiting on it to cycle!?!? So much for instant cycle. I've been dosing ammonia up to 4ppm. Here's where I'm at now. How much longer? What am I doing wrong? 8f6a69b0ba84658161175329ac2398ee.jpgfdd2f8701dbddf2d1e6737c43dacc9c2.jpg
     
  2. Aquaphobia

    AquaphobiaFishlore LegendMember

    How long has your nitrite been showing at 5.0ppm? Have you done any water changes to get that down or dilutions tests to determine how high it actually is? Too high nitrites can negatively affect your bacteria and stall your cycle.
     
  3. OP
    OP
    christopherdiehl77

    christopherdiehl77Valued MemberMember

    I did 90% water change last night and it brought nitrites down to
    .50ppm and then i dosed ammonia up to 4.0ppm. Tonight, 24 hrs later they're at 5.0ppm
     




  4. OP
    OP
    christopherdiehl77

    christopherdiehl77Valued MemberMember

    I cant figure out why nitrites arent going down any
     
  5. JoJe

    JoJeValued MemberMember

    How big is your new tank compared to how much media you added? I assume you have a filter/pump to help the cycling of water through the bio media, but even still larger tanks may take longer to cycle simply due to the amount of water and thus more ammonia. Is your tank planted? If not your nitrate is going to stay high without water changes, and even if planted, nitrate will stay higher longer without water changes.

    Overall it just looks like your tank is in the middle of the cycle since the ammonia is low and both nitrite and nitrate are high. Aquaphobia did pose a good question though of how long your tank has been showing high nitrate. Generally nitrite converts to nitrate pretty quickly, though this conversion does take a little longer than ammonia to nitrite at the beginning of a cycle due to the slower growth of the nitrite to nitrate creating bacteria.
     
  6. OP
    OP
    christopherdiehl77

    christopherdiehl77Valued MemberMember

    I have a 10 gallon that i took the media out of and put it in my 29 gallon. I do have the filter on and circulating the water as well as a sponge filter going to help with water agitation. Heater is set to 80. It's not planted because it's going to be a shell dweller tank. I'm not sure how long nitrites sat at 5ppm but after 90% water change it went from .50ppm to 5.0ppm in 24hrs. Should i do another water change or wait it out?
     
  7. OP
    OP
    christopherdiehl77

    christopherdiehl77Valued MemberMember

    Anyone have any suggestions?
     
  8. JoJe

    JoJeValued MemberMember

    Wait it out. It is just where you are in the cycle. If another week goes by with no change, then maybe consider a bacteria starter like TSS or Stability.
     
  9. OP
    OP
    christopherdiehl77

    christopherdiehl77Valued MemberMember





  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice