how should I store my DIY liquid ferts?
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Old 03-08-2013, 08:25 PM   #1
Uhu
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how should I store my DIY liquid ferts?


I recently started dosing DIY liquid ferts that I made from Rex Grigg's website recommendations (http://www.rexgrigg.com/dosing.htm). I was wondering if over time these liquid solutions of KNO3, KH2PO4 and Plantex CSM-B would start growing anything. I did use distilled water of course to make these solutions but since these containers are opened weekly I am thinking there is some risk to grow fungus, algae, bacteria in them over time. I have read about adding a bit of Flourish Excel to the liquids, which I have not tried yet. I do refrigerate the Plantex but not KNO3, or KH2PO4.

I am curious what others experiences are in this area.

Thanks.
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Old 03-08-2013, 08:52 PM   #2
Darkblade48
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I have never refrigerated my macronutrients, and they were fine.

Micronutrients tends to grow moldy with some time, so putting in the fridge, adding Excel, hydrochloric acid, citric acid or ascorbic acid will all help prevent the growth.

I have also used moldy micronutrients (just filtered it a few times through some coffee filters to get rid of the big chunks of mold) with no problems.
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Old 03-08-2013, 09:09 PM   #3
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+1 ^^^^
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Old 03-08-2013, 10:30 PM   #4
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how much excel do you add?
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Old 03-09-2013, 12:36 AM   #5
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10 ml to 500 ml is what I hear.
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Old 03-09-2013, 06:18 AM   #6
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Okay, I just ordered a scale I'm going to give PPS-Pro a go and the ferts are suppose to be in liquid. Is it okay to use water bottles to make the ferts solution? I would use new ones and use distilled water instead of the drinking water.
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Old 03-09-2013, 06:42 AM   #7
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Quote:
Originally Posted by latchdan View Post
Okay, I just ordered a scale I'm going to give PPS-Pro a go and the ferts are suppose to be in liquid. Is it okay to use water bottles to make the ferts solution? I would use new ones and use distilled water instead of the drinking water.
Yes, any sort of container is fine.
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Old 03-09-2013, 02:26 PM   #8
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If you're going to use a clear bottle container, make sure you store it somewhere away from light.
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Old 03-09-2013, 03:16 PM   #9
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Quote:
Originally Posted by Darkblade48 View Post
I have never refrigerated my macronutrients, and they were fine.

Micronutrients tends to grow moldy with some time, so putting in the fridge, adding Excel, hydrochloric acid, citric acid or ascorbic acid will all help prevent the growth.

I have also used moldy micronutrients (just filtered it a few times through some coffee filters to get rid of the big chunks of mold) with no problems.
+1. My CSM used to get moldy even Potassium until I added unmixed Metricide 14 of good amount.
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Old 03-10-2013, 01:47 AM   #10
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I have a shelf inside a closet that I use for all my fish stuff and the closet is "suppost" to be closed all the time unless I'm working in the tank :P
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