Highly concentrated potassium iodide source (10,000 mg / L). The most stable iodide supplement available. vibrance is a highly concentrated (10,000 mg / L) stabilized potassium iodide source for reef aquariums that restores and maintains iodide at levels found in seawater. Our proprietary stabilization process makes vibrance the most stable iodide supplement available. It's also the most concentrated. It comes with a pipette for accurate dosing and is formulated to provide a safe source of iodide that will not convert to toxic free iodine during storage or in the aquarium.