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Old 11-09-2018, 03:14 AM   #1
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Nitrogen deficiency

What can cause nitrogen deficiency? & What is the solution?
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Old 11-09-2018, 09:44 AM   #2
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Lack of nitrogen causes a nitrogen deficiency.
The addition of nitrogen will fix it.
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Old 11-09-2018, 10:37 AM   #3
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Hello nal...

If you have an extremely large tank with just a few, small fish, nitrogen levels can be very low. The large volume of water will dilute the nitrogen from the dissolved fish waste to the point the nitrogen wouldn't show up if you tested the tank water. The solution would be to add more fish.

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Old 11-09-2018, 10:40 AM   #4
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Quote:
Originally Posted by ZxC View Post
Lack of nitrogen causes a nitrogen deficiency.
The addition of nitrogen will fix it.


I meant why this suddenly happened ? Is it related to wc (I did 50%) or light time reducing (9 to 6 hrs) or adding iron or using surface skimner as I did all within 1 week as my tank showed early algea symptoms.
And how to add nitrogen ?
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Old 11-09-2018, 10:46 AM   #5
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Quote:
Originally Posted by nalqadah View Post
I meant why this suddenly happened ? Is it related to wc (I did 50%) or light time reducing (9 to 6 hrs) or adding iron or using surface skimner as I did all within 1 week as my tank showed early algea symptoms.
And how to add nitrogen ?
Water changes will remove nitrogen (if your tap water doesn't have any in it of course).

so 10ppm NO3 tank water will turn into 5ppm NO3 after a 50% water change.

Fish will produce it, but in a lot of cases it is not enough to support proper plant growth.

So we fertilize to meet nitrogen requirements.

KNO3 is a simple compound that I use to add nitrogen.

Thrive is an over - the - counter all in one fertilizer that works well.
Stay away from Seachem Flourish unless you know exactly what you want from those products.
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Old 11-09-2018, 10:51 AM   #6
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Water changes will remove nitrogen (if your tap water doesn't have any in it of course).



so 10ppm NO3 tank water will turn into 5ppm NO3 after a 50% water change.



Fish will produce it, but in a lot of cases it is not enough to support proper plant growth.



So we fertilize to meet nitrogen requirements.



KNO3 is a simple compound that I use to add nitrogen.



Thrive is an over - the - counter all in one fertilizer that works well.

Stay away from Seachem Flourish unless you know exactly what you want from those products.


It's true I'm using seachem potassium and iron (not flourish excel) plus fertilizer (added once weekly) but not seachem.
So do you recommend waiting until it builds up by it self or should I add nitrogen as you mentioned?
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Old 11-09-2018, 10:56 AM   #7
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Originally Posted by nalqadah View Post
It's true I'm using seachem potassium and iron (not flourish excel) plus fertilizer (added once weekly) but not seachem.
So do you recommend waiting until it builds up by it self or should I add nitrogen as you mentioned?
Do you have an NO3 test?

I'm assuming your tank is considered low tech or low light?

I would target 10ppm of NO3 dosed weekly. That way you know that you are supplying 10ppm of NO3, and your fish will add some more. As long as you are doing a decently big water change weekly.

I would strongly suggest using Thrive and target that 10ppm NO3 or simply follow the directions on the bottle.
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Old 11-09-2018, 11:26 AM   #8
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I found aquaforest nitrogen only, not low light I can say, 21w/7000 Kelvin for 15gal tk medium planted.
I'm getting the Nitrate/nitrite/amonia test kit tomorrow to give exact parameters.
Regarding WC I usually do 25% & last week only I did the 50% change only
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Old 11-09-2018, 11:29 AM   #9
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What light do you have?
How tall is the tank?
I would still suggest using Thrive as then you are providing ALL the nutrients plants need.
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Old 11-09-2018, 12:20 PM   #10
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Hygger blue white led 45 LEDs, it's around 60H*30L*30H (in cm's).
My local dealer doesn't have thrive, only aquaforest & seachem
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