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Old 08-03-2011, 05:18 PM   #1
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Could the tank cycle already?!?

We filled the aquarium on Sunday with pre-mixed RO water from my LFS, I have got 110 kg of cured LR, in the filter we have LR rubble, carbon, filter floss, clearmax (which traps phosphate nitrite and nitrate) and sponges (sponges are remaining from the previous aquarium)

Had the water tested at 2 separate LFS as they do it free!

Here are my results

Ammonia 0
Nitrite 0
Nitrate <15
pH 8.0
Salinity 1.022
Temp 25.5 (78)

LFS say that it has already cycled?!?? Is this possible and would the reason for it be the LR?! I'm confused!!
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Old 08-03-2011, 05:22 PM   #2
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No expert here but I doubt it. I went through the same thing over the course of 2 weeks. From what I can gather, the best way to tell is to add a tiny bit of pure ammonia. Then test for a few days. If it has cycled the ammonia will skyrocket, then start to come down while Nitrite climbs. As the Nitrite starts to come down you will the Nitrate start to climb. Once the ammonia and nitrite are at 0 and your nitrate is below 20 you should be good to go. At least that is what they tell me. As of last night I was 0 across the board except Nitrate which was 40. I did a 10% water change and will see what it is tonight.
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Old 08-03-2011, 05:38 PM   #3
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I might be wrong but if it's cycled and you add ammonia it should go back to zero if it's cycled. Say you add to 1 ppm ammo it should go back to zero within a day. If you add ammo and it shows trites before the ammo goes down then it's not cycled it's actually cycling .
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Old 08-03-2011, 05:39 PM   #4
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Since you bought cured LR, you have pretty much cycled.
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Old 08-03-2011, 05:39 PM   #5
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Quote:
Originally Posted by Hondatek View Post
I might be wrong but if it's cycled and you add ammonia it should go back to zero if it's cycled. Say you add to 1 ppm ammo it should go back to zero within a day. If you add ammo and it shows trites before the ammo goes down then it's not cycled it's actually cycling .
Sounds about right to me with one exception. If I understand it correctly, the process will always be ammonia, then nitrite then nitrate. It would just be quicker if it has cycled because you have a good colony of BB. Of course, I am just learning here so I very well could be wrong.
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Old 08-03-2011, 05:45 PM   #6
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But if it's cycled you shouldn't have any trite that would show up on a test
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Old 08-03-2011, 05:50 PM   #7
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So you are saying that if the BB are in a good colony the tranformation from ammonia to nitrite to nitrate is so fast you most likely won't see it? I guess I just assumed it would take a little time.
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Old 08-03-2011, 05:51 PM   #8
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Yeah my trites are 0! So what Is the general consensus, as posts above are conflicting! I'm going to do a 10% Pwc on Friday and re test on Sunday
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Old 08-03-2011, 05:52 PM   #9
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Quote:
Originally Posted by rdnelson99
So you are saying that if the BB are in a good colony the tranformation from ammonia to nitrite to nitrate is so fast you most likely won't see it? I guess I just assumed it would take a little time.
That's my understanding of it yes .
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Old 08-03-2011, 05:54 PM   #10
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Quote:
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Yeah my trites are 0! So what Is the general consensus, as posts above are conflicting! I'm going to do a 10% Pwc on Friday and re test on Sunday
Did you see the nitrite go up and then down to zero?
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