How Long Should I Flush Before Harvest?

I have a indica strain and it has been flowering for 8 weeks. Shouls I start flushing? Is flushing just using regular water without fertilizere? any advice would be very helpful

8 weeks is a pretty standard time for flowering but it doesnt mean your plants are fully done.

Flushing is watering with plain water so the plant uses up all the stored nutrients in both the soil and the plant. Flushing is normally a 2 week process that depletes all the impurities and give it a better taste and smoothess.

Even as important is the drying and curing process

Like BM said, no nutes, just water, for the next two weeks.

is molasses ok to use?

I would tend to say that it would be okay.