The Planted Tank Forum - View Single Post - TFG for a TDS meter, could have just killed $500 in CRS
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Old 11-11-2012, 03:15 AM   #6
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I am glad this time you decided to test the water, I used to buy R/O water from LFS but decided to stop b/c of fear that they could mix it up with salt water. I feel safer with Walmart distilled and I still test every single gallon
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