The Reef Zlements ICP-OES Saltwater & Professional test is a high-precision laboratory water analysis service designed for serious reef aquariums. Using advanced ICP-OES technology and professional analytical equipment, it measures major, minor and trace elements with exceptional accuracy, helping reef keepers detect imbalances, contamination and nutrient issues before they become visible in the aquarium. Ideal for SPS-dominated systems and advanced reef management, the service provides detailed results together with dosing recommendations to maintain optimal stability, colour and coral growth.