The Planted Tank Forum - View Single Post - Liquid plant food.....can it lose its potency after a number of years???
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Old 02-12-2013, 05:37 AM   #4
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One thing I know is that plastic bleeds in air. Like a two liter bottle of soda will be as they say soft (going flat ) after a year shelf life...A glass container does not do that.....AS every body says that soda taste better in a glass bottle. That is the reason why it taste better than a plastic bottle of soda... My belief is that chemicals do change after time exposed to air... Like I say, That's my opinion...

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