Tropical Fish Keeping - Aquarium fish care and resources

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-   -   No ammonia nitrites or nitrates why? (

LiamB 08-18-2013 05:23 PM

No ammonia nitrites or nitrates why?
I have 6 black skirt tetra and was at the point in cycling my 45 gallon tank where I had 0 ammonia and between .25 and 1ppm nitrites. Yesterday I had .5 nitrites and changed about 8 gallons of water and today boom nothing please help. Ill show you my log if necessary.

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Sakura8 08-19-2013 01:04 AM

Hi LiamB. It seems like somehow, that 8 gallons you took out refreshed everything and removed the nitrites. My best advice is to keep testing for ammonia and nitrites and the next time you get a reading for nitrites, don't change any water until the nitrites reach 2.0ppm or more. Then do a small water change like you did before. The key to successfully cycling fish-in is to stick it out until the ammonia and nitrite reach danger levels. Otherwise, there will not be enough to start the cycle. I've made the same mistake; in my desire to ease my fish's discomfort, I removed way too much water and stopped the cycle cold.

Austin 08-19-2013 05:47 AM

Well taking out 8 gallons at most should have made the nitrites ~0.4.

LiamB 08-20-2013 02:26 PM

This is day 3 of the same results... Any idea what could be going on?

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Hallyx 08-21-2013 05:58 AM

Just keep changing water when the ammonia or the nitrite reach >0.25ppm (is the figure I see most recommended). The tank will cycle all by itself. You'd have to take steps to prevent it. It's likely this will not require more than one water change per week. That's what you should be doing anyway. And, as always, Prime is your friend.

Sakura, do you really advocate letting the nitrite rise >2.0ppm? Neither have I heard of a large water change actually "stopping the cycle cold." In my experience, it hardly slows it down.

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