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Water Chemistry

Charts, graphs, and diagrams focused on saltwater aquarium water chemistry.
  1. How to use a Refractometer to Measure Salinity

    How to use a Refractometer to Measure Salinity

    In the early days of the hobby, we’d use a floating glass hydrometer to measure the specific gravity in our tanks and when mixing up saltwater. The strength of the seawater determines how high...
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  2. Aquarium Water Parameters Chart

    Saltwater Aquarium & Reef Tank Parameters - Acceptable Ranges Reference Chart

    Maintaining proper reef tank parameters is essential to the health and well-being of fish, coral, and invertebrates inside your aquarium. Fluctuations in a key aquarium parameter, such as...
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  3. How To Raise pH In Your Saltwater Aquarium

    How To Raise pH In Your Saltwater Aquarium

    Low pH is a common water quality issue with reef aquariums. Here’s what you need to know on how to raise pH in your marine tank.
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  4. How a Kalkwasser Reactor Works

    How a Kalkwasser Reactor Works

    Thinking of a kalkwasser reactor but have questions? This diagram should help you better understand how it works!
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