Hi bud candy is only sugar. and yes it helps. it feeds the microbatreia in your soil. So the plant can absorb the nutrients. You can use molasses or sugarsirop too ( 1teaspoon per L). I never used flawless finish. Iam using clear water to flush my Plants. But most thing into flawless finish is magnesium. so in that point i dont use it..... a lot of water and alittle magnesium for a lot of money.....