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Marine Water Parameters

To help our customers maintain a sucessful saltwater aquarium, we have listed the Ideal Water Parameters below.  We have also included the average levels of natural seawater for reference.

Reef Aquarium

Parameter Recommended Level 
Specific Gravity: 1.023 - 1.025 
Temperature: 72 - 78°F
Alkalinity: 8 - 12 dKH
PH: 8.1 - 8.4
Ammonia (NH3): Undectable
Nitrite (NO2): Undectable
Nitrate - Nitrogen (NO3):    < 1.0 ppm
Phosphate (PO4): < 0.2 ppm
Calcium: 350 - 450 ppm
Magnesium: 1250 - 1350 ppm
Iodine: 0.06 - 0.10 ppm
Strontium: 8 - 14 ppm

 

Fish Only Aquarium (With or Without Live Rock)

Parameter Recommended Level 
Specific Gravity: 1.020 - 1.025 
Temperature: 72 - 78°F
Alkalinity: 8 - 12 dKH
PH: 8.1 - 8.4
Ammonia (NH3): Undetectable
Nitrite (NO2): Undetectable
Nitrate - Nitrogen (NO3):    < 30 ppm
Phosphate (PO4): < 1.0 ppm
Calcium: 350 - 450 ppm
Magnesium: 1150 - 1350 ppm
Iodine: 0.04 - 0.10 ppm
Strontium: 4 - 14 ppm

 

Natural Seawater

Parameter Recommended Level 
Specific Gravity: 1.025 
Temperature: 82°F
Alkalinity: 6 - 8 dKH
PH: 8.0 - 8.4
Ammonia (NH3): Near Zero
Nitrite (NO2): Near Zero
Nitrate - Nitrogen (NO3):    0.25 ppm
Phosphate (PO4): 0.13 ppm
Calcium: 380 - 420 ppm
Magnesium: 1300 ppm
Iodine: 0.06 ppm
Strontium: 8 - 10 ppm