Replenishment of a number of trace elements is required to maintain an environment ideal for the growth and reproduction of marine life, but while the importance of trace elements has been recognized by aquarists for many years, the physiological reasons are not fully understood. The chemical elements in seawater are varied, and, likewise their addition to the aquarium in trace quantities has varied effects on a variety of saltwater plant and invertebrate species. In general, though, these elements are important for metabolic processes and pigment formation.

Use 1 capful (5 mL) for every 80 L (20 gallons*) twice a week.

Amounts per 1 gram. Ingredients: copper sulfate, cobalt sulfate, manganese sulfate, boric acid, sodium molybdate, zinc sulfate, rubidium chloride, nickel chloride, vanadium sulfate