Beneficial Biologics Sea Green 1 Gallon Plants can make the most of the nutrients theyre given with the help of Primordial Solutions Sea Green (1.5-0.5-4.0)! Useful in both soil and hydroponic gardens, Sea Green breaks nutrients down into forms that can be easily absorbed by plants, increasing the availability and variety of beneficial materials available to them. Sea Green can be used to improve any existing nutrient program, even those using high-salt fertilizers or organic nutrients.