Nutrafin Cycle Biological Aquarium Supplement is suitable for freshwater & saltwater aquariums.

• Immediately establish a safe biological aquarium environment 
• Powerful & responsive ammonia and nitrite elimination
• Provides beneficial bacteria to establish healthy colonies
• Immediately release fish into your aquarium after use
• Safe for freshwater & saltwater aquarium use

Directions for use:

New aquariums: Day 1 - 25mL per 38L. Day 2 - 10mL per 38L. Day 3 - 10mL per 38L.

Maintenance dose (water changes, filter maintenance): 5mL per 38L.

New fish &/or medicating: 10mL per 38L.

Weekly beneficial bacteria dosage maintenance: 5mL per 38L.

Shop more aquarium water treatments here.