Growth promoters are like the 'turbo charged icing on the cake'.Using the appropriate booster nearly always gives you extra yield and plant performance and apart from anything else it can be fun to see how your plants can positively react to the various boosters and additives. If you are in doubt what to choose and are growing in hydroponics then we would whole heartedly recommend Canna PK 13/14 or Vita Link Buddy as a good starting point.
