SUGARS AND STARCHES will beef up your buds. I personally use Humbolt Countys Gravity (in incredibly small doses) and and Crystal Burst. But there are soooo many options. Molasses because of the Potassium content. Bud Candy, General Hydroponics Florabloom. Like i said you can add a ton of stuff to beef them up. Highly recommend Gravity though. Its a flower hardner and will give you some serious weight. Best thing to do is go to you local grow store and ask around.