All part of the Flora Series, the three solutions I purchased were:
1.) Flora Micro - provides plants with basic building blocks Nitrogen, Potassium and Calcium
2.) Flora Gro - provides elements for growth including Nitrogen, Phosphorous, Potassium
3.) Flora Bloom - stimulates further developmental stages with lots of Phosphorous, Potassium, Magnesium and Sulfur
More information can be found at:
http://www.ncagr.gov/cyber/kidswrld/plant/nutrient.htm
http://www.genhydro.com/genhydro_US/floraseries.html