The FloraSeries is a hydroponic-based nutrient fertilizer system that helps fulfill your plants’ nutrient needs at every stage of growth.The FloraSeries, including FloraMicro, FloraGro, and FloraBloom, allows growers to fine-tune their feed system by putting them in charge of when and how much of each nutrient to use in each stage of growth.FloraMicro is the "building block" of the FloraSeries. It contains nitrogen, calcium, and chelated micronutrients to help support fast-growing crops during all growth stages.FloraGro is blended with nitrogen phosphorus, potassium, and magnesium for support of structural and foliar growth.FloraBloom is packed with phosphorus, potassium, magnesium, and sulfur to help encourage flower and fruit development.Calimagic is a concentrated blend of readily available calcium & magnesium. It is formulated to assist fast growing plants by preventing secondary nutrient deficiencies. Calimagic helps optimize plant nutrition & enhances plant growth & development while preventing Blossom end rot & tip burn in many crops, such as tomatoes & lettuce as well as other calcium intensive plants.General Hydroponics pH control kit contains 8 oz pH up, 8 oz pH down, 1 oz indicator & vial. Stimulates flower & fruit development.