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Old 08-29-2005, 05:30 PM   #1
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Exceptable NO3,NO2, NH3/4 levels

Hi all,
I just wanted to know what the acceptable levels of nitrate, nitrite, & ammonia are in a salwater aquarium. I have a water test kit but it doesn't really say when the levels start to become lethal or just start to stress the fish. I know that zero is the magic number but this is a new tank so the cycles may not be 100% yet. I am going to do a small water change anyways but I just want to know for future reference.


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Old 08-29-2005, 05:52 PM   #2
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zero is the only acceptable range for a saltwater tank except for nitrate readings. They should be zero but fish can tolerate nitrate to about 40. Inverts do not do well with nitrate. so, that being said......zero.

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Old 08-29-2005, 08:22 PM   #3
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Yep. max nitrate in a reef setup should never ever exceed 10ppm, but ideally you want 0ppm or barely a trace. Same with phosphate levels.
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