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Has anyone checked these out. Supposedly they use electrolysis to create pure O2. They use them to increase the O2 in the water for hydroponically growing "tomatoes". I wonder if a few of these sitting in your sump, or feeding into a skimmer would increase O2 levels, and if that would actually help with growth or health. Thoughts?!
http://www.o2grow.com/
http://www.o2grow.com/


