If you like Purple Maxx but color is not your primary goal, then Snow Storm Ultra is for you. Humboldt isolated the stacker effect and optimized it for maximum results. There is absolutely nothing else like it on the market. Does not contain carbohydrates or molasses. Three years of development went into this Humboldt County original. Best of all, this additive works with all your favorite nutrient lines. When used with Gravity, Snow Storm will take your plants beyond anything achievable with fertilizer alone.