Dosage :

New Aquariums :

Day 1: 25 mL per 38 L (10 U.S. gal)
Day 2: 10 mL per 38 L (10 U.S. gal)
Day 3: 10 mL per 38 L (10 U.S. gal)

All regular maintenance activities (water changes, filter maintenance, etc.) :

5 mL per 38 L (10 U.S. gal)

After adding new fish and/or medicating :

10 mL per 38 L (10 U.S. gal)

Weekly dosage to maintain a strong beneficial biological colony :

5 mL per 38 L (10 U.S. gal)

Treats :

1,892 L (500 U.S. gal)