How long do you guys think is the shelf life of freshly made dry ferts? ? - The Planted Tank Forum
 
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post #1 of 5 (permalink) Old 06-12-2014, 07:23 PM Thread Starter
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How long do you guys think is the shelf life of freshly made dry ferts? ?

How long do you guys think is the shelf life of freshly made dry ferts?


Provided they are kept in a dark place??
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post #2 of 5 (permalink) Old 06-12-2014, 09:00 PM
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For KNO3, KH2PO4, K2SO4, the shelf life is probably about 1000 years or more, assuming they are stored in sealed containers so no water vapor can get in. For CSM+B, it might be a lot less, but it could be as long.

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post #3 of 5 (permalink) Old 06-12-2014, 11:04 PM Thread Starter
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Ok. No worries then. It's funny how the seachem flourish comprehensive bottle says refrigerate after 4 months....
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post #4 of 5 (permalink) Old 06-13-2014, 12:54 AM
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Quote:
Originally Posted by Ninja View Post
Ok. No worries then. It's funny how the seachem flourish comprehensive bottle says refrigerate after 4 months....
I believe that is mainly because Flourish Comprehensive is a micronutrient mix, and those tend to cultivate mould unless refrigerated.

Anthony


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post #5 of 5 (permalink) Old 06-13-2014, 01:53 AM Thread Starter
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