For calcium and magnesium supplies aqaurien reef as an alternative or as an addition to calcium bioreactor. See our article "Balling" and the enclosed operating manuals.
Please note also the accompanying safety and store the chemicals and solutions so that in no case children or pets to the products arrive.
Check before every use and the need to overdose on you no chemicals.
Although Balling method is a very gentle, you can overdose on this, and the coral to die off.