This
Colloidal silver hormonally stresses the plant to hermie, versus physically stressing the plant and ending up with messy offspring.
Female plant pollinating said female plant=feminized seeds.
I've put so much thought into this process too! Only downside is how bad the water will smell, hell just watering soil with a strong compost tea makes my whole area smell HORRIBLE for a few hours.
Can anyone please clear up for me exactly how many plants you're legally allowed to have? I have now been told 18(6 flower 6 veg 6 clones), 15(6f 6v 3c) and just the basic 12.