Three times I created FRESH, STRONG colloidal silver using different voltage and volumes, I can do it.Just create FRESH, STRONG colloidal silver ... there's no point gambling on the quality of old CS! And it doesn't cost much
Nevertheless its interesting to me to learn CS shelf life. Its not about cost, its a kind of hobby science.
Today I started to spray on early flowers of my Maple_Leaf clone with 45ppm aged one month.
When it lookes like no point gambling I'd better jump out of the thread for not to irritate and with a respect to topic starter.
Thank you.