If yougrow an unstable strain.
Light leaks will turn your plants hermie at the end right before harvest.
They grow a bunch of bananas with polline in it.

Total darkness.
Or you'll regret it.
Unless you grow something that has been stabilized for 20 years or so.
Most newer strains will hermie from a light leak.

If you don't believe me,go ahead and give it a try.
You'll be kickin yourself.