Cyco Platinum Series is Australia's most successful hydroponic nutrient brand in addition to having the most complete range. It has a huge market share worldwide, notably in the US and Canada. It is popular not only in retail stores but is also used in countless medical and commercial grows. That's the reason Cyco has grown from humble beginnings in Adelaide to become a global industry leader! Couple your Cyco nutrients and medium and grow like a professional! Take advantage of years of research and development by following the easy to use chart. Don't fly by the seat of your pants and waste time and money!