Dosage:

• S7: Weekly 3 ml per 100 L of aquarium water
• E15: Every 4 weeks (e.g., always on the 15th of the month) 1 tablet in 100 L of aquarium water
• V30: Every 4 weeks (e.g., always on the 30th of the month) 3 ml in 100 L of aquarium water