Optima is a very high-quality activated carbon with resins.
1 liter of Optima cleans and purifies a 100-liter freshwater or saltwater aquarium for approximately 3 months.
pH, hardness, and conductivity values are not altered.
Does not release phosphates.
A charcoal known and used for many years by professionals and amateurs alike, including for demanding animals such as discus, invertebrates…
One of the only charcoals that also contains resins for improving water quality.
