REEF TRACE supplies a wide range of trace elements that have proved necessary for proper reef health and growth. Trace elements are normally depressed by their use, oxidation and precipitation. The last two processes occur more quickly than with other micronutrients. Sto makes it important to restore trace elements by a regular routine. Reef Trace can be used alone or in conjunction with Reef Plus. The best results are obtained using them together. Reef Trace is free of nitrate and phosphate. The replacement of a number of trace elements is required to maintain an ideal environment for growth and reproduction of marine life.