View single post by ArizonaEvp
 Posted: Mar 20th, 2013 08:38 AM
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ArizonaEvp



Joined: Jun 26th, 2009
Location: Heart Of Arizona Indian Country, Arizona USA
Posts: 662
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For those of you that may think adding food coloring might lead to false positives....here are a couple of images using only water and a blue-white light: