The Reef Foundation ABC Complete L Liquid Supplement from Red Sea is designed to maintain and replenish the three critical elements that form the foundation of a successful coral reef aquarium: calcium, magnesium, and bicarbonates. These essential components are crucial for water chemistry stability, pH balance, alkalinity levels, and overall ionic strength in saltwater environments. By providing a balanced formula without altering the natural composition of seawater, this supplement ensures optimal conditions for corals to thrive, supporting their biological functions such as skeleton formation and photosynthesis.