there is this article:
In print and online, Maximum Yield is your source for cannabis and cultivation knowledge, with informative grow articles and tips to enhance your life with mmj.
www.maximumyield.com
which states that using colloidal silver, 20ppm or higher on flowers is used to turn female plants to male, cs prevents production of ethylene which makes plants grow pollen sack and since female plants have no male genes, they produce seeds with female genes only...
in human usage, it is used as disinfectant, and in plants it is used for treating fungus and root rot but with 1:25 dilution "A solution of 10 ppm strength colloidal silver mixed at the rate of 1 pint colloidal silver to 2.5 gallons of water and 1/4 teaspoon household detergent was applied to affected trees (in various states of challenge, from 10% to 50% foliage involvement). Visually detectable improvement manifested within 48 hours. Marked improvement and pathogenic stabilization evidenced within 72 hours."
but im still interested in it... why did you use it? where did you find source for that?
forgot to ask:
did you check if some other thing in your environment went crazy, like temp or hum? did you change nute regim? just to be sure we exclude any other variable...