Tropic Marin Pro-Reef Sea Salt 25kg / 55lb (200 gal) Bucket

Tropic Marin Pro-Reef Sea Salt is a pharmaceutical-grade sea salt optimized for modern reef aquariums with elevated calcium and magnesium levels to support stony coral growth.

Formulated for systems with regular calcium and alkalinity supplementation. Alkalinity is typically maintained in the 7–8 dKH range. Prepared saltwater can be stored for weeks.

• Optimized calcium and magnesium levels for stony corals
• Contains all 70 trace elements in natural proportions
• High solubility and free of nitrates and phosphates
• Pharmaceutical-grade purity
• Ideal for SPS-dominated or mixed reef systems

Makes approximately 200 gallons. Use for regular water changes or new tank setups in reef systems.