INGREDIENTS: Na+ Mg2+ K+ Ca2+ Sr2+ Cl- SO42- Br- B F- HCO3- Al I Fe Cu Zn, Trace elements, minerals and multi vitamins. DIRECTIONS FOR USE: 1. One full tea spoon is 5 gram. For the first time use, add 20 gram per 50 liters of water. 2. After water changes, apply the dosage (20 gram per 50 liters) according to the volume of water that refill in the tank. 3. Each bag contains 1000g for 2500 liters of water. A 5 gram spoon is included.