The ATI Elements Reference contains the natural balance of elements and salinity in its solution to refer to when using at home test kits. ATI Elements Reference will also help calibrate hydrometers or refractometers.
|Reference Element Solution Levels|
|Carbonate Hardness||6.9 °dKH|
ATI is a German based company that specializes in high quality T5 lighting products as well as a line of skimmers and aquarium filter media. Their T5 bulbs and fixtures have become one of the more popular brands of reef enthusiasts.