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Reef Water Chemistry

Critical Parameters
Parameter: Reef Aquaria: Ocean Value:
Calcium 380-450 ppm 420 ppm
Alkalinity 7-11 dKH 7 dKH
Salinity sg = 1.026 sg =1.025-1.027
Temperature 76-83? F Variable
pH 8.1-8.3 8.0-8.3
Magnesium 1250-1350 ppm 1280 ppm
Phosphate < 0.03 ppm 0.005 ppm
Ammonia <0.1 ppm <0.1 ppm


Secondary Parameters
Parameter: Reef Aquaria: Ocean Value:
Silica < 2 ppm <0.06 - 2.7 ppm
Iodine Not Required 0.06 ppm
Nitrate < 0.2 ppm < 0.1 ppm
Nitrite < 0.2 ppm < 0.0001 ppm
Strontium 5-15 ppm 8 ppm
ORP Not Required Variable
Boron < 10 ppm 4.4 ppm
Iron Undetectable
(additions OK)
0.000006 ppm

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