Article 5 min read

Marine Water Quality & Chemistry Guide

By The Aquarium Calculators Editorial Team ·

Understand the critical parameters for marine water quality: salinity, pH, alkalinity, and calcium.

Marine Water Quality & Chemistry Guide guide image

Quick Answer

Marine water quality hinges on maintaining a stable specific gravity (1.020-1.026), a high pH (8.1-8.4), and undetectable ammonia/nitrite. Reef tanks also require strict management of alkalinity, calcium, and magnesium.