Are there any issues of using either one of these? Ive read around and diff sources are saying 3% is bad because it may contain other chemicals. I also read that people have used 3% with no problems. Any recommendations? I found this link here and it shows a chart for both? is that ok?
http://www.using-hydrogen-peroxide.com/gardening-with-hydrogen-peroxide.html
http://www.using-hydrogen-peroxide.com/gardening-with-hydrogen-peroxide.html