Marine Aquarium Water Quality Parameters

Marine environments are extremely stable, particularly where corals live. Significant deviations outside the range given for any of the parameters may lead to problems in the aquarium.

  • Temperature: 74 to 82F (23-28 C)
  • Salinity 34-36 ppt (1.0250-1.0270)
  • pH 8.15-8.6 (optimum 8.2-8.3)
  • Alkalinity 2.0-5.0 meq/L (6-15 dKH)
  • Ammonia (NH3)-zero
  • Nitrite (NO-2)-zero
  • Nitrate (NO-3)-<20 mg/L (as nitrate ion)
  • Nitrate (NO-3)-<4.55mg/L (as nitrate-nitrogen)
  • Phosphate (PO³)-<0.05mg/L
  • Calcium (Ca²+) - 375-475mg/L
  • Dissolved Oxygen (O2)->6.90mg/L

For more information on Marine Aquarium Water Chemistry or Marine Aquarium Beginners Guide click here

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