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TOPIC: Cycling Problems

Cycling Problems 2 years 7 months ago #63376

  • Jay22
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Hi everyone, I have some really confusing cycling Problems going on and Hallyx from bettafish.com said you could help.

I started cycling 2 weeks ago. I got the ammonia up to 4 ppm in my 10 gallon unplanted tank and waited 3 days. I tested again, 2 ppm ammonia and 0 ppm nitrites. I waited until it hit 0, about 1 week ago and gave it 1 ppm of ammonia within 12 hours of it hitting 0ppm. Everyday this week I gave it enough to get to 1ppm of ammonia, and in the morning I would give enough to get back to 1 ppm. I tested on Friday, no nitrites. I was told to redose it so I gave it 3.5 ppm ammonia, 30 hours later 2 ammonia and 0 nitrites. Now, I just tested it and it is 1ppm ammonia amd no nitrites. I am pretty sure I should be reading nitrites ...

Here are the tanks facts.

I am using a top fin 10 power filter.
The tank stays at 86 degrees Fahrenheit .
I test with Api master test kit that expires in 12/2020
My pH is around 7.8

I don't know what I messed up on. I am willing to tank any help.

Thank you.
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Cycling Problems 2 years 7 months ago #63380

  • tom
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Welcome to Ofish!
Sounds like you may have missed the nitrite spike, given that your ammonia is reducing.
After the tank is cycled, you should never see nitrites.
Are you testing for nitrates as well?
The ammonia has to be going somewhere.
It is nitrates that you should detect after the tank has cycled.
Ass enough ammonia to bring the level up to 2 ppm.
If after several hours, the ammonia level reduces, you should see a corresponding rise in nitrates.
If you have nitrates your tank is cycled.
:)
Give this a read, maybe we're both missing something.
www.oscarfish.com/water/81-fishless-cycle.html
6 ft 220g - Tiger O, Rotkeil Severum 10 Silver Dollars
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Cycling Problems 2 years 7 months ago #63392

  • Jay22
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I have no nitrates. And I already did that test, no nitrates or nitrites
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Cycling Problems 2 years 7 months ago #63401

  • tom
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Then you add ammonia until you test 3 to 4 ppm.
If it drops from that level, add enough to keep it there.
Test daily for ammonia and nitrites.
Keep the ammonia at 3-4 ppm until you detect nitrites.
When you detect nitrites, let the ammonia drop to 2 ppm and start testing for nitrates.
Keep the ammonia at 2 ppm until you see nitrates.
When you see nitrates, you should seen nitrites start to decrease.
When this happens stop adding ammonia, both ammonia and nitrites should drop to zero.
A final check would br to add ammonia to bring it to 1 ppm.
Within a few hours, ammonia should test zero with a positive result for nitrates.
Your tank is then cycled.
6 ft 220g - Tiger O, Rotkeil Severum 10 Silver Dollars
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Cycling Problems 2 years 7 months ago #63404

  • beretta96
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Hi Jay....I wouldn't worry about it. I think you're on course - continue being patient!

I've cycled two virgin tanks thus far in my 1+ years keeping fish. I seeded ammonia for ~3 weeks in both tanks before I got my first nitrite reading using an API Master Test Kit.

Basically, you want to follow Tom's advice and keep the ammonia as close to 4 ppm, without going over, as possible until you begin seeing nitrites.

I followed Dr. Tim's, of Dr. Tim's Aquatics, suggestions on how to cycle a tank. Although his products & timeline didn't work out for me, following the principles he espoused did get me there.

I kept detailed logs of the cycling process on all three of my tanks. You're welcomed to that data if you'd like it.
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Cycling Problems 2 years 7 months ago #63407

  • FreshyFesh
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The only fishless cycles I've done, by adding ammonia were on a 10g and a 29g simultaneously. It takes a lot longer than 2 weeks for anything to happen if you're starting from scratch. I had basically the same thing you describe happen to me. My ammonia PPM would drop, but I wasn't showing a nitrite spike, or obviously any nitrates. For me, the cause was my nitrite spike was so high, the API test couldn't read it and was indicated 0ppm given the amount of nitrites was over-range high. So high that the cycle stalled and no nitrates were being formed.

The fix was simple. It took several large water change and the cycle took off. I saw a nitrite spike and within 2-3 days, I'd dose 1-2ppm ammonia and it would instantly be converted to nitrate.

Little tanks are more troublesome to fishless cycle IMO. I'd dose no more than 2ppm ammonia if I had to do it again.
75g a tiger oscar and a green severum
55g community tank with plants
55g goldfish tank
29g community tank with plants
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