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Old 06-02-2012, 03:08 PM   #1
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Nitrate level

An anyone advise please my nitrate levels are circa 50ppm but all my other test are well within the norm range. Tested ph 8, nitrite 0ppm ammonia 0.25ppm kh 3.2mg, sg 1.024 ca & mg are both well high.

How do I drive the nitrate levels down?
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Old 06-02-2012, 03:13 PM   #2
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The immediate way is to do PWC`s. I would do some weekly 10-20% PWC`s and that will bring it down. A long term way would be to get a skimmer, feed less and lower your bioload if you have to. How about some info like tank size and tank mates?
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Old 06-02-2012, 03:53 PM   #3
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Yep water changes id start with a big one to really knock them nitrates down and then start a weekly routine of 10-20% changes
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Old 06-02-2012, 07:15 PM   #4
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I would be more concerned about the ammonia. Do you have livestock in the tank?

We need to establish why you have NH4 present. Should be 0 under normal circumstances.
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Old 06-03-2012, 07:46 AM   #5
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Yer I have a 300ltr tank, skimmer, 2 canister filters in series, chiller, uv filter, top up system and metal hals. I normally do a 10% water change every 2 weeks. My stock is, normal clean up crew ( could do with a little) my fish are: orange spot goby, fire fish, majestic angel, sailfish tang, 5 anthias, 2 clowns and a cleaner wrass
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Old 06-03-2012, 11:37 AM   #6
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Canister filters are OK as long as you are cleaning very regularly, if not they become nitrate factories. Once a week really is best.

How much rock do you have? How old is your tank? Have you noticed any stock missing recently? Although if you have sufficent rock it would have to be big to spike ammonia.

The solution to pollution is dilution. So as above first but you need to sort the NH4 as it's very toxic to livestock.

HTH.
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Old 06-03-2012, 11:47 AM   #7
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I thought nitrate was ok in the 5-10 range I thought it was nitrite and ammonia that's toxic
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Old 06-03-2012, 11:51 AM   #8
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You are way overstocked and that is why you have nitrate problems. The angel and tang should not be in that tank, they will get way too big and have large bioloads. What type of anthias? They probably need a bigger tank too
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Old 06-03-2012, 12:12 PM   #9
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Quote:
Originally Posted by ryan-peddle View Post
I thought nitrate was ok in the 5-10 range I thought it was nitrite and ammonia that's toxic
True, the problem is the NH4 [Ammonia] is at 0.25ppm which is toxic, it needs to be 0. It's never good to see in a tank with any stock in. NO2 [Nitrite] is 0, which is as it should be. NO3 [Nitrate] isn't toxic but can be an issue due to excessve nutrients.

It has been said that at very high levels of NO3 it will irritate stock.
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Old 06-03-2012, 12:34 PM   #10
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Quote:
Originally Posted by Carpious

True, the problem is the NH4 [Ammonia] is at 0.25ppm which is toxic, it needs to be 0. It's never good to see in a tank with any stock in. NO2 [Nitrite] is 0, which is as it should be. NO3 [Nitrate] isn't toxic but can be an issue due to excessve nutrients.

It has been said that at very high levels of NO3 it will irritate stock.
Yeah I heard that I thought the issue was nitrate not nh4 my bad
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