nitrite and nitrate

Discussion in 'Water Parameters and Additives' started by werner5, 5 Aug 2012.

  1. werner5

    werner5

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    hey guys i dont know what to do anymore my

    nitrite = 1
    nitrate = 50

    i dont know what to do to bring those readings down :(:(
     
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  3. ccwilke

    ccwilke Majestic Pets Solutions Sponsor

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    First give us a description of your setup.Then I am sure there will be plenty people with advice.How old is the tank?
     
  4. werner5

    werner5 Thread Starter

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    its plus minus a 200L setup the tank is now almost 4 years old
    it only has 2 fish and live rock my filtration is a dsb and an reeftek ts1 skimmer
    lights is a t5 unit with 4x 54 watt t5s

    nitrite = 1
    nitrate = 50
    ph = 8.4
    ammonia = 0
    alk = 5dkh
    salinity = 1.025
     
  5. ccwilke

    ccwilke Majestic Pets Solutions Sponsor

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    How often do u do water changes?
    How old is your test kit?
    What salt do you use?
     
  6. werner5

    werner5 Thread Starter

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    i do a water change every 2 months
    my test kit is new bought it a week ago its an red sea testkit
    i use sera marin basic salt
     
  7. ccwilke

    ccwilke Majestic Pets Solutions Sponsor

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    @RiaanP can you maybe assist as you know dsb well.
     
    Last edited by a moderator: 26 Nov 2015
  8. 459b

    459b Moderator MASA Contributor

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    You Alk is a tad low, try bringing it up to around 8.
    How much do you feed?
     
  9. werner5

    werner5 Thread Starter

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    i feed once a day and how do i bring up my alk thanx for the fast response
     
  10. Mac75

    Mac75

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    I think the presence of nitrites can result in incorrect nitrate readings. The red sea test kits have some sort of table of measurement for that.... I dont use red sea test kits anymore. Might be in or on the box somewhere....
     
  11. leslie hempel

    leslie hempel Moderator MASA Contributor

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    a picture, a list of inhabitants and a feeding routine would help alot.. also just check the expiray on the test kit... it can sometimes be expired it has happened before..

    the more info the better...
     
  12. RiaanP

    RiaanP Moderator

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    What fish do you have, are they messy eaters like lions? And how big are they.

    If small, most likely you overfeed. Rather feed twice a day but a lot less per feeding.

    What is the dimensions of your DSB. How deep is the sand. How wide is the sump from front to back. And what return pump plus rating do you have.
     
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  13. werner5

    werner5 Thread Starter

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    i have one clown fish and one royal gamma will give you the dimensions of the sump and dsb tomorrow thanx for the help
     
  14. Indrin

    Indrin

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    Hy bru,try doin more water changes,mayb twice a week
    Feed your fish @ least twice a week.if it doesn't come down use No3Po4
    By Redsea,it will drop your nitrite and nitrates right down,use 6ml for a 200lt
     
  15. Indrin

    Indrin

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    Oops I'm sorry ,I meant once a day feed your fish
     
  16. rskhobbies

    rskhobbies

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    change every 2 months
    how much liter you change?
    try every 1 moths.
     
  17. Indrin

    Indrin

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    U need to @ twice a week water change then moniiter the phospate and nitrate then add N03P04
     
  18. Indrin

    Indrin

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    Do @ least 20lt twice a week
     
  19. vatso

    vatso

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    post some pics let people have a look see - your fish can miss a day or 2 of feeding

    are you feeding dry food or frozen food?

    feed dry food and put in a piece at a time make sure they eat every thing - also change the food and only put in some norri for the day then no feeding anything

    hungry fish are healthy fish
     
  20. BigFish

    BigFish

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    Warnig info overload

    normal cycle Waste --> ammonia --> nitrite ---> nitrate

    Usually (with new tanks,no DSB, mini cycles) Your nitrite > 0 means the nitrite-to-nitrate bacteria are struggling.

    Which means your filtration cant keep up with the ammount of waste being produced. (old system handled a waste load of say 10. You somehow increased this to say 20 which means a 100% increase. so your bacteria are struggling to catch up)

    So for now cut down on feeding ,do more frequent water changes, cultivate some more macro algae,clean out skimmer more often,vaccum substrate for detrius, position powerheads etc for better flow (detrius goes better into the water column ).

    Whats your ammonia reading ?
    If its 0 then your waste-to-ammonia converting bacteria are managing
    > 0 then they are also struggling to cope with the waste

    Nitrate is 50 could also mean your DSB has not matured yet, your water for mixing has nitrates, and/or your water changes are insufficient for your tank & feeding.

    How much live rock do you have in the tank?
    Did you add more new live rock recently. (could be cycling)
    Did you add anything recently ?

    Do you have notes of all your test readings for the last 2 months?
    What are the NH4 NO2 NO3 tests of the water you using for water changes before you add mixed water into tank?

    Another scenario is that your DSB is immature & cannot handle the NO3 bio load in your tank. (also advice in bold would help)

    A) normal Cycle aerobic. Waste → NH4 → NO2 → NO3-

    B) DSB reaction Anaerobic . NO3− → NO2− → NO → N2O → N2 (g)

    if DSB bacteria doing NO2- → NO are insufficient then lots of nitrite is being formed but not converted to nitrogen gas & then overloads A) again

    Could explain why some tanks where ammonia is zero, nitrates > 0 but they get nitrites

    Only way to tell is to test for nitric oxide NO & nitrus oxide N2O (laughing gas)
    (are yours critters in the DSB moving fast . its the nitros :biggrin:)

    You can do the advice in bold for now until your DSB matures

    sorry for the long stories :eek: but its an early morning & neutrons are firing
     
    Last edited: 6 Aug 2012
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  21. werner5

    werner5 Thread Starter

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    thanx for the awesome post big fish will help me alot . to be honest this is the first time i have tested my water in 2 months and i dont test my mix water will do that next time there must be atleast 15kg of live rock in tank and i agree with you on dsb its only 3 months old and i didnt seed it cos i dont know how to do seed it and i dont see any critters in the dsb at all

    heres my readings :

    nitrite = 1
    nitrate = 50
    ph = 8.4
    ammonia = 0
    alk = 5dkh
    salinity = 1.025
     
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