I did the blacklight test last week because we had our carpets shampooed recently and I wanted to see if that got rid of anything... It DIDN'T DO A THING! I was pretty mad. I then proceeded to saturate every single glowing green spot with Nature's Miracle. I checked on it a few days later and the stains are STILL there. Nature's Miracle has always been my go to product but I guess it doesn't work on stains that are old.. I'll have to try the Hydrogen Peroxide solution and hope that works! Thanks for the tip!