| Specific Gravity | 1.020 - 1.025 | | Temperature | 72 - 78°F | | PH | 8.1 - 8.4 | | Total Alkalinity | 4 - 5 mg/l | | Borate Alkalinity | 1 - 2 mg/l | | Carbonate Alkalinity | 3 mg/l | | Ammonia (NH3) | 0 | | Nitrite (NO2) | 0 | | Nitrate (NO3) | < 30 | | Phosphate (PO4) | < 1.0 ppm | | Calcium | 350 - 450 | | Magnesium | 1150 - 1350 ppm | | Iodine | .01 - .10 ppm | | Strontium | 4 - 10 ppm |
| One of the most important tasks in maintaining a reef is maintaining correct water parameters. Here is a table with the values to follow. Remember to purchase only quality test kits to check the quality of your water. One note, Carbonate alkalinity is derived by subtracting borate alkalinity from total alkalinity. | |
