Well sundaytoker,

If you were using http://www.foxfarmfertilizer.com/ then you could fertilizer up untill harvest day. Yes, you should start using just water. You should start taking samples since you may prefer your WW at day 60 to 84 sampling now will help you.

You should keep the buds in the dark since sunlight will reduce the potency while drying. There are many ways to store your bud over time everybody has a preference. Mine you ask? Tupperware.

Loco