Salinity % 30.0~30.5 pH ? 8.30~8.50 KH ? 9.0~10.0 Na? mg/L 9800~9900 Mg²? mg/L 1250~1350 C1? mg/L 17200~17800 SO?²? mg/L 2300~2400 K? mg/L 350~380 Ca²? mg/L 420~450 Br? mg/L 25.0~35.0 Li mg/L 0.20-0.30 Rb mg/L 0.02~0.05 F? mg/L 0.90~1.20 B mg/L 6.0~80 Mn mg/L 0.025~0.030 Fe mg/L 0.30~0.40 Co mg/L 3.0×10??~6.0×10?? Mo mg/L 4.0×10?³~6.0×10?³ Sr mg/L 8.0~10.0 I mg/L 0.06~0.08 Se mg/L 4.0×10??~7×10?? Cd mg/L 0.1×10?³~0.2×10?³ Cu mg/L 0.3×10?³~0.6×10?³ Zn mg/L 3.0×10?³~5.0×10?³ Al mg/L 1.0×10?³~3.0×10?³ The other trace elements mg/L 1.0×10??~6×10?? SPS hard coral salt is a specially formulated marine salt to meet the growth and development needs of SPS (small stony coral) hard corals. SPS scleractinian corals are a type of coral commonly found in coral reefs and are known for their small, porous calcium carbonate structures. They require a stable, mineral-rich seawater environment to thrive. saltwater aquarium salt are becoming more and more popular among aquarium enthusiasts. Creating a thriving marine environment requires careful consideration, and choosing the right salt is critical to the well-being of aquatic life.