By continuing to use the website or clicking Accept you consent to our cookies and personal data policy and confirm that you are at least 18 year old. For details please see Privacy Policy and Terms
Hey I run my autos 18/6 for for up to 3 weeks and then switch to 20/4 and I find it works great for them and give them 4 hours of dark to rest and build roots/buds.
Hope that helps and happy growing