Humboldt Nutrients Sea Mag was designed in Humboldt County to be a powerful additive for hydroponics and all growing mediums. Sea Mag may be utilized for any type of vegetable, flower or herb. Sea Mag is loaded with vital elements which help control cell division, cell growth, cell differentiation and various internal processes. Sea Mag can be used to supplement magnesium and to increase plant growth. Sea Mag supplies crucial elements that plants require, preventing and correcting potential nutrient deficiencies.