you cant go wrong with general hydroponics 3 part system even though it sounds like it might confuse you . with additions such ass floralicious kool bloom diamond nectar and I always use advance nutrients vita plus and botanicares liquid karma, but what you need to structure your feeding around is you levels such as you parts per million learn how to consistently read this and know what levels for stage of plant. my regiment consists of me buying the 3 part system in 5 gallon buckets every 6 months, thats alot of food,