Balance out your buddy’s tank with ATI Essentials Pro #2. This complete supplement for saltwater aquariums is produced in two parts for easy dosing. It is crafted to contain all of your aquarium’s essential elements in one simple system. This saltwater aquarium supplement can be used as-is or diluted as needed. It contains 28 elements to help you replace 3 x 10 liters of conventional element supply for your seafaring sidekicks.