ESV B-Ionic Strontium - 16oz ESV B-Ionic Strontium - 16oz is a liquid strontium chloride supplement for marine and reef aquariums. It provides a highly soluble inorganic strontium source for maintaining dissolved strontium levels in systems with corals, coralline algae, clams, and other reef organisms that benefit from stable trace element availability. ESV B-Ionic Strontium for Marine Trace Element Support Strontium is naturally present in seawater and is commonly maintained in reef aquariums as part of a broader trace element routine. This liquid format gives aquarists a direct way to supplement strontium based on testing, water-change schedule, coral demand, and overall reef maintenance practices. Pure Strontium Chloride for Reef Aquariums Liquid strontium supplement for marine and reef aquariums. Made with highly soluble inorganic strontium chloride. Helps maintain dissolved strontium levels in reef systems. Useful for aquariums with corals, clams, coralline algae, and regular calcification demand. Very pure concentrated form free of phosphates and nitrates. Best used as part of a tested trace element maintenance routine. 16oz Strontium Supplement Notes Package size: 16 oz. Product type: Liquid strontium chloride supplement. Use: Marine and reef aquarium strontium maintenance. Form: Highly soluble inorganic strontium solution. Testing: Use with strontium and alkalinity monitoring where possible. Not a calcium, alkalinity, magnesium, iodine, or complete trace element supplement. Strontium Dosing and Alkalinity Monitoring Dose according to the product label and use test results whenever possible. Add the supplement to a high-flow area of the aquarium or sump and avoid large untested additions. Because strontium chloride, like calcium chloride, can affect alkalinity over prolonged use, monitor alkalinity as part of the dosing routine and adjust other reef supplements only after testing confirms a need. What's Included One 16 oz bottle of ESV B-Ionic Strontium.