Hanna HC - HI758 - Marine Calcium Checker Red Sea Coral Essentials recommends using Coral

Coral Essentials recommends using Coral Power Phosphate Up when you can not achieve the levels of phosphate to maintain a balanced carbon/nitrate/phosphate  system

One of the most trusted media for calcium reactors in the industry

powerful and easy to maintain

Automatic Top Off:

with a clear volute which creates an intense amount of bubbling

Hanna HC - HI758 - Marine Calcium Checker Red Sea Coral Essentials recommends using CoralThe Hanna Marine Calcium Checker bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits have limited accuracy and resolution since they rely upon the human eye to discern differences in color. Professional instrumentation incorporates a light source such as an LED or tungsten lamp with a filter and a light sensing detector to precisely determine absorbance and ion concentration. Professional