Should I add bacteria? - Page 3 - Tropical Fish Keeping - Aquarium fish care and resources
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post #21 of 23 Old 05-11-2013, 08:15 PM
I would suggest switching from the ammo lock and the conditioner to prime. Given what you have said so far I would expect the many changes caused an initial ammonia spike. The ammo lock in my opinion is what is causing the problem here. It is know for sometimes giving elevated false readings especially with the API test kit. It will likely take a couple water changes to get it out of the tank to where it isn't affecting readings.

Quick way to test would be to take an ammonia reading then do an 80% water change. Add the ammo lock and conditioner you have been using then test ~30 minuets later. If there isn't a significant drop from the water change its likely getting a false positive. This doesn't rule out that your tank doesn't have an ammonia problem its just going to be difficult to determine if the ammo lock is messing with the results. Given you have no nitrite I wouldn't be surprised if you have little to no ammonia actually present.
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post #22 of 23 Old 05-24-2013, 10:12 PM Thread Starter
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What would you say the nitrite reads at? Finally I get these readings when just yesterday the nitrite and trate was 0.

https://www.dropbox.com/s/wjvm2exhtr...%2015%20PM.jpg

So when do I know the cycle is complete? When ammonia and nitrites read 0?
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post #23 of 23 Old 05-24-2013, 10:33 PM
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Originally Posted by Tarutan View Post
What would you say the nitrite reads at? Finally I get these readings when just yesterday the nitrite and trate was 0.

https://www.dropbox.com/s/wjvm2exhtr...%2015%20PM.jpg

So when do I know the cycle is complete? When ammonia and nitrites read 0?
The short answer is yes. When the bacteria colonies are sufficiently populated, you should not detect ammonia or nitrite in the standard tests and you may see nitrates increase. In the meantime, continue to use partial water changes and a conditioner like Prime to keep ammonia and nitrite levels under control.

Keep us posted,
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