- Nutrafin Cycle keeps your aquarium and fish healthy!
- Contains beneficial bacteria; nitrosomonas and nitrobacter
- Each dose works to reduce dangerous ammonia and nitrite levels in the aquarium
- Nutrafin Cycle is an all natural product that will not harm plants, animals or humans.
- Super concentrated
- For fresh and saltwater aquariums
- 16 fl. oz. (473 mL)