Kn03 ? - The Planted Tank Forum
 
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post #1 of 7 (permalink) Old 07-01-2005, 12:41 PM Thread Starter
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Kn03 ?

Currently I am using Flourish Nitrogen witch I don't know if I dose proprely.
So today I was looking for some KN03 to dose with my KH2PO4 & K2SO4 from Greg Watson.
I found some 25KG bag but the lady in the shop wasn' t speaking a lot of english so I could not get any information from her, this is what is write on the bag:

Krista-k tm
EC- Fertilizer

Potassium Nitrate

NK Fertilizer 13.5
45.5

Total Nitrogen (N) 13.5%
of wich
Nitric Nitrogen (N) 13.5%

Potassium oxide (K20)
Water soluble k20 45,5% (37.8%K)

Low in chlorine

So is it OK to use this stuff or shall I carry on my search & what shloud I looki for?

Thanks for the help.
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post #2 of 7 (permalink) Old 07-01-2005, 04:09 PM
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I am no chemist but I found the following about Potassium Oxide:

"CHEMICAL DANGERS:
The solution in water is a strong base, it reacts violently with acid and is corrosive. Reacts violently with water producing potassium hydroxide. Attacks many metals in presence of water."


I do not think you want to put potassium hydroxide in your tank.
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post #3 of 7 (permalink) Old 07-01-2005, 11:45 PM
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That will work fine. Due to fertilizer labeling laws they have to state things the way you noticed. Those compound are not actually in the bag.
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post #4 of 7 (permalink) Old 07-02-2005, 12:05 AM Thread Starter
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Thank‘s Rex.
But I am not very sure if I dose properly, because I use a scale (0.01gr) and every body seam to use teaspoon. So maybe you can tell me in gram a weekly schedule for KN03, KH2P04, K2S04 and Flourish, my tank is a 40G with pressurise CO2 and 2,5 WPG.
Thank s for the help.
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post #5 of 7 (permalink) Old 07-02-2005, 01:43 AM
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post #6 of 7 (permalink) Old 07-03-2005, 06:15 AM
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The stuff you found most likely is ok given REX said it is. But if you got some stuff from GW why not get some KNO3 from him too??!!


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post #7 of 7 (permalink) Old 07-03-2005, 06:51 AM Thread Starter
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Because he can not send it via airmail.
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