Salifert Calcium Test Kit This RO Membrane is rated

This RO Membrane is rated at 100 GPD (or Gallons per Day) - so that means 100 Gallons in 24 hours

Empty Refillable Media Cartridge 10" x 2

Notice "Add C1" appears on the screen

much more economical to use than live phytoplankton

In case of contact with the skin

Salifert Calcium Test Kit This RO Membrane is ratedSalifert Calcium Profi Test Calcium is a major constituent of coralline algae, the skeletal material of hard corals and the skeletal needles of soft leather corals. In many cases too low a calcium concentration retards coral and coralline algae growth. Calcium also fulfills many important biological functions. In a healthy aquarium, the growth and multiplication of corals, calcareous algae and other organisms can result in calcium depletion. To