whats the carboload for? Carboload is just dextrose (sugar) that is either in its granular form or has been mixed with water to a sludge. I'm sure you dont have to be too scientific. just mix enough dextrose powder in water and mix until you get a color and consistency similar to that of Carbo. If you dump sensizym for Hygro, there is no need to feed the plant carbs until close to flush time if ever because you are not feeding anything anymore.