Description PJS Iodide Element Pack Available in a Prepack kit dry, add to one liter or quart of water. Also Liquid is available in PJS BYOC Program. YES, I make this regularly from the highest quality, most consistent sourced material. This is a trace element, but an essential one to be maintained. Use PJS REEF CALCULATORS  on PJS REEF MOONSHINERS PAGE to calculate dose, its so simple. NOTE: The calculators on this page are tuned to the concentrations in PJS REEF MOONSHNERS ELEMENT PACKS.