Hrm, I thought I read the title wrong. . 30 minutes 3 parts bleach /7 part water would have bleached the plants and worked!
I would NOT follow the fishgeeks recommendation for timing at 2 minutes. We live in a warmer climate where chemical reactions are faster. At 1 part clorox/19 parts water, from 30 secs onward, keep checking for the most sensitive plants like mosses and those with thin leaves. Use a white container and have a bright light to see clearly as it happens.
You can if you dare to fail - Stan Chung
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