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Originally Posted by emc7
A lot of water conditioners have a trace of EDTA (Ethylene diamine tetracetic acid). Its a cool molecule that wraps 4 arms around heavy metals and kelates them. Because it grabs Ca+2 and Mg+2 ions, you might see a decrease in hardness. The reason its added is that it is non-toxic to fish and will protect fish from toxic heavy metals like mercury.
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emc7:
This is very, very good info!
You got a url which describes the details.
This may be one reason Seachem Prime is generally recommended due the effects of this EDTA.
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Originally Posted by JustOneMore20
Yep, the color of soy sauce. I have not heard of any adverse effects of not placing it in the refrigerator. I personally do not keep mine in the refrigerator and as far as I can tell, it hasn't caused any problems.
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Ditto.
TR