For a healthy reef tank, the following parameters are ideal: Temperature: between 75°F and 82°F (24°C to 28°C) Salinity: 1.023 to 1.025 specific gravity pH: 8.1 to 8.4 Ammonia: 0 ppm Nitrite: 0 ppm Nitrate: <10 ppm Calcium: 400 to 450 ppm Alkalinity: 7 to 11 dKH Magnesium: 1300 to 1400 ppm Phosphate: 0.03 ppm…