Deltec Hy Carb - Pure Natural Carbonate Granulate Reusable – clean with hot

Reusable – clean with hot water for multiple uses

so they don’t need constant dosing

natural substrate made from premium Douglas fir bark

After the running-in period

Pour the contents of the vial into the aquarium

Deltec Hy Carb - Pure Natural Carbonate Granulate Reusable – clean with hotDeltec Aqua Crown Hy Carb Deltec Hy Carb is a phosphate free, granular calcium reactor media specifically designed for use in Deltec fluidized bed calcium reactors. It's a pure, natural granulate that helps increase calcium and magnesium levels in marine aquariums. It's often used in conjunction with Deltec HyMag (a pure magnesium granulate) to achieve a desired magnesium concentration.