That does not sound smart, I bet you don't flush your toilet.So we've got indica strain, proper feeding, and sufficient light. I have to agree with those. To which I'll add some more. First, on the light component, it must be intense, well reflected, and with as full a spectrum as possible with an emphasis on the red/orange portion. More on proper feeding coming right up.
Next, an article in CC magazine that I found to be very helpful when learning to grow bigger denser buds indoors.
Also, big healthy green leaves are crucial to making big dense buds.
1. Never remove a leaf from the plant, unless the leaf is already about to fall off on it's own due to over-maturity(or accidental/premature death). Pruning shade leaves to increase light reaching lower buds is not a wise choice. You will never make up for the loss of production to the top of the plant from whatever may be gained on the lower part. The answer to that is to provide sufficient lighting to the lower buds, optimal reflectivity is the best way to get more light to the lower parts of the plant. Or just remove them from the plant(why you would is another argument really, so I won't be addressing it here, but I don't recommend it either). Light loses intensity/strength based on distance from the source. So you gain relatively little from doing anything except moving the source closer to the plant, or vise versa. Leaves serve a very important purpose in maintaining plant health and vigor. Buds are not going to efficiently feed themselves without them. LEAVES ARE BUD FEEDERS, NOT BUD FOOD!
2. Never flush. Pre-harvest flushing is such a fat dense bud killer it's not even funny. Just in the hopes of getting a better flavored smoking material. Which you won't. It may actually worsen the flavor, density, smokability, and/or potency of the buds. MINIMALLY you will lose harvested/dried weight. You're essentially starving the plant to death. When you should be feeding it what it needs to grow the BIGGEST DENSEST buds at the point in it's life cycle when that's exactly what it wants to do. Yes, I know the article mentions it, but I don't see that as a recommendation. Just how to incorporate the method, if desired. Which you should desire not, trust me. Much foolishness. Mother Nature, the best grower in the universe, doesn't flush her plants, and nor should you. AND IT WILL ACTUALLY INCREASE INTERNODE LENGTH/STRETCH, GUARANTEED!!!
Lastly, stems. Bigger, denser, heavier buds also need bigger thicker stems to pipe in all the nutritional building blocks used to make them, and to help support their weight. While controlling internode length is very effective at improving density, providing a simulated breeze of adequate strength is THE ONLY non-nutritional way to build a larger-diameter/sturdier stem structure. When the plant grows to resist the forces of wind it will naturally respond to it by thickening it's stems/branches. This benefits the buds come flowering time by allowing them to grow much larger and/or faster. In this sense you can force the plant to grow as if it were older, taller, and/or heavier than it really is. You also will have less need to support the plant by manual methods(stakes, strings, cages, etc.)
Still waiting to see your magical herbs..Veggie farmers definitely flush. Excess nitrogen lowers crop values by lowering sugars, oils and shelf life. Same applies to pot, hence the marriage of unflushed weed and boveda packs. Some people just don't get it...
Too many uneducated people making shit up on these forums. If your bud dries in less days than my defoliated fan leaves do, you really shouldn't spread bad info.. Too many people smoking wet unflushed nutrient smelling "gas" these days.