The Reef Blueprint Isol8:Si is a concentrated silicon supplement designed to support the healthy growth and development of sponges and various species of marine phytoplankton, including diatoms. This essential nutrient solution ensures that these vital components of your reef aquarium ecosystem receive the necessary silicon for robust health and optimal function. The recommended dosage is just one drop per 189.27 liters (50 gallons) daily, or as dictated by the silicon uptake rate in your system.