Octo CalReact Calcium reactor 140 (25W/3,9L/400-800L) An ideal solution/upgrade for the discerning hobbyist! OCTO CalReact features high-quality cast acrylic body construction, a PH probe holder to allow constant monitoring of water alkalinity (PH level) with...

Octo CalReact Calcium reactor 200 (40W/7,9L/1100-1800L) An ideal solution/upgrade for the discerning hobbyist! OCTO CalReact features high-quality cast acrylic body construction, a pH probe holder to allow constant monitoring of water alkalinity (pH level) with...

Octo CalReactor 220 (70W/9,3L/1400-2100L) An ideal solution/upgrade for the discerning hobbyist! OCTO CalReact features high-quality cast acrylic body construction, a PH probe holder to allow constant monitoring of water alkalinity (PH level) with the use...

Octo CR Calcium Reactor 140 (42W/3.8L/400-800L) An ideal solution/upgrade for the discerning hobbyist! Quality, design and affordability define the Reef Octopus Classic Calcium Reactor series. Available in 2 different models that feature reverse flow water...