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Its unique fibre structure effectively traps both large and fine particles
Pour the contents of the vial into the aquarium
Operating manual
After the running-in period
Reef Crystals® represents a major advancement in aquarium maintenance
Deltec Hy Carb - Pure Natural Carbonate Granulate Its unique fibre structure effectivelyDeltec 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.