MgCl2 Hexahydrate Magnesium Increaser salt 4000g usable for two part/balling and other DIY methodsHighly pure Magnesium Chloride Hexahydrate (MgCl2. 6H2O) for increasing magnesium. TRITON DIY salts are packed in house using only the purest ingredients, tested and quality controlled within TRITON Lab. These products are suitable for 2 Part, 3 Part or other D. I. Y. supplement methods used by reefkeepers and professional aquarists. https: www. triton reagents. de fileadmin user_upload support uploads Manuals Manual_MgCl2_Balling_Salts_EN. pdf