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Old 02-02-2013, 12:53 AM   #1
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Stalled Cycle?

I am fish less cycling my tank and I watched my ammonia drop and my nitrites spike till they were off what my test kit could read. I did a 50% water change but my nitrites didnt even budge. They are exactly as they were before the change and still are a few days later. Is my cycle stalled or is this normal?
Any help or opinion is appreciated!!
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Old 02-02-2013, 01:21 AM   #2
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This happened to me too. I would do a 75% water change, that got my nitrites down to about 5 or so, then I did a smaller one the next day and it finished up in a few days!
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Old 02-02-2013, 09:04 AM   #3
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+1 to what Scottyhorse said. Try doing a larger water change (as much water as you can take out), don't forget to dechlorinate, wait a couple of hours then test nitrite again. If it's still high, do another large water change. Keep doing this until nitrites are readable on the chart (<2). Then dose ammonia to 2 instead of 4 and see what happens in 24 hours.
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Old 02-02-2013, 11:35 AM   #4
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Alright water change it is!
Thank you for your help I appreciate it
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Old 02-05-2013, 01:13 AM   #5
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Nitrite

How long does it usually take to have nitrite drop into readable levels? I am cycling my tank and did a 90% water change and am just waiting for my Nitrite to disappear.
How long does this usually take?
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Old 02-05-2013, 01:37 AM   #6
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It can take a few weeks after you first see the spike. Are you seeing much nitrates?
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Old 02-05-2013, 09:37 AM   #7
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Something in between 50-110 but my test kit (liquid) says high nitrite can affect the nitrate reading.
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Old 02-05-2013, 10:15 AM   #8
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It's a good Time for a large water change. 70-90% so you don't have a pH crash. Also,it seems like you're pretty close to being cycled with nitrates that high.
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Old 02-07-2013, 01:13 AM   #9
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70% water change
Nitrite dropped a bit
Nitrate didnt change
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Old 02-07-2013, 01:14 AM   #10
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Quote:
Originally Posted by earlywaters View Post
70% water change
Nitrite dropped a bit
Nitrate didnt change
When I say "a bit" I mean from 3.3 to 1.6
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Old 02-07-2013, 07:56 AM   #11
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If things seem stalled do another big change.
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Old 02-07-2013, 09:31 AM   #12
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Are changes detrimental to the bacteria while cycling?
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Old 02-07-2013, 09:59 AM   #13
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No. Just be sure to dechlorinate.
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