Cycle Query

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My 3ft tank is now also completed its 5th week of cycling. Its had approx 9kg live rock, DSB of live sand and live sand substrate from the beginning. I started testing the ammonia, nitrite and nitrate levels from mid way through week 2. What i dont understand is that after all this time my ammonia level has stayed constant at 0.25 and my nitrite level has stayed constant at 0.1 with only my nitrate level fluctuating over this time.

Is this normal or do u think maybe my test kits are a bit screwy? I would have thought i would at least see some sort of change in nitrite and Ammonia by now.
 
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Could be still part of the cycle or faulty test kit.

Get a fellow reefer to test with another kit.
 
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Probably a good idea, i am using Red Sea test kits at the moment and they dont give a huge variation in testing as in it will go from 0.5 - 0.25 - 0. May be that my ammonia is at 0.1 and thus not testing 0??
 

dallasg

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try adding a piece of raw shrimp to the tank, and see if it changes things
 

jacquesb

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Ditto to what Warr said - for ammonia/nitrites/nitrates, I would not use Red Sea....... Ask at least 2 more sources to assist by testing your water parameters.... Then you can be more than sure that of the correct results!
 

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Kunhardt, how did you seed your tank? Unless you have enough bacteria growing to break down the ammonia into Nitrates.

Just a thought, but yes could be test kits, Which ones are you using?
 
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Kunhardt, how did you seed your tank? Unless you have enough bacteria growing to break down the ammonia into Nitrates.

Just a thought, but yes could be test kits, Which ones are you using?
Got sand for my DSB and substrate from the sea during spring tide, its got an abundance of life in it, added some water from my 10 gallon and a few small pieces of live rock from it as well. Some of the live rock in my tank also came out of another reefers tank. Have i understood your question of seeding correctly Kanga?

With regard to test kits i'm using Red Sea, LFS here swears by them and says so does the koi farm here. But my problem with them is like i said earlier there isnt much of a variable in testing results, by this i mean big gaps from one colour to the next.
 
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try adding a piece of raw shrimp to the tank, and see if it changes things

Hmmm... I dont know Dallas, what happens if my ammonia is in actual fact 0 and by adding the raw shrimp i cause a ammonia spike and tank cycles again? Just a concern.
 

dallasg

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well it shouldnt cycle again, it should see if it causes a spike, like adding a fish.
if your bacteria growth is good, they will do their job and break it down, thats the goal of cycling
 

Kanga

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Got sand for my DSB and substrate from the sea during spring tide, its got an abundance of life in it, added some water from my 10 gallon and a few small pieces of live rock from it as well. Some of the live rock in my tank also came out of another reefers tank. Have i understood your question of seeding correctly Kanga?

With regard to test kits i'm using Red Sea, LFS here swears by them and says so does the koi farm here. But my problem with them is like i said earlier there isnt much of a variable in testing results, by this i mean big gaps from one colour to the next.

Yip certainly sounds like it was seeded properly. The Red Sea test kits arent the greatest.
 

jacquesb

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Not only that the Red Sea test kits aren't the greatest Kanga - IF the Koi people are using them - it seems that those kits Kunhardt is using, MIGHT just be MORE for freshwater, than for sea water....
 

Kanga

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Not only that the Red Sea test kits aren't the greatest Kanga - IF the Koi people are using them - it seems that those kits Kunhardt is using, MIGHT just be MORE for freshwater, than for sea water....

Eish, you right. You would think the LFS would check. Kunhardt just check this as well.
 
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How long have your tank / water been cycling for, Kunhardt?

On Sunday it will have completed 5 weeks. I planned from the beginning to cycle for 2 months, but am concerned now that ammonia and nitrites haven't budged in so long.
 
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What test kits would u guys recommend? I believe Salifert are very good, but nobody has those. We have a huge selection to choose from...Serra or Red Sea :p

I think i may have to order another brand.
 
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Eish, you right. You would think the LFS would check. Kunhardt just check this as well.
As far as i know Kanga the kits are marine and fresh water from the wording on the instructions inside. I may be wrong and they only marine. Definately not fresh water only test kits though.
 

Kanga

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As far as i know Kanga the kits are marine and fresh water from the wording on the instructions inside. I may be wrong and they only marine. Definately not fresh water only test kits though.
I dont see any duel purpose kits on their site, what is the exact name of the kit that you are using?
 

jacquesb

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Kunhardt - I would order Salifert or Tropic Marine (or even SeaChem) if I was you.
BUT, in the interim - either take your water to someone else to test, until you have your better testing kit.....
Just to make 100% sure.....

It is NOT impossible that your tank's water have indeed completed cycling though..... You MUST keep this in mind too....
 
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I dont see any duel purpose kits on their site, what is the exact name of the kit that you are using?
Do u have a link to the site Kanga? I am at work so not sure of the exact name off hand, but i will know it when i see it.
 
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Kunhardt - I would order Salifert or Tropic Marine (or even SeaChem) if I was you.
BUT, in the interim - either take your water to someone else to test, until you have your better testing kit.....
Just to make 100% sure.....

It is NOT impossible that your tank's water have indeed completed cycling though..... You MUST keep this in mind too....
I have been thinking investing in salifert test kits for a while now Jacques, and one of our LFS has been saying they will get in for a few weeks now so hopefully they will else i will have to order online.

If my tank was completed cycling Jacques wouldnt my nitrites be 0 or at least lower than 0.1 and same for ammonia? Sorry not too clued up here, as much as i have read about cycling some of the aspects still escape me. How would i know if the cycle was complete?
 

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