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Reef Tank Parameter Chart

A complete reef tank parameter chart with ideal ranges for salinity , calcium, alkalinity, magnesium, nitrate, phosphate, pH, temperature, and more. Quick

A reef tank parameter chart gives you target ranges for salinity , temperature, alkalinity, calcium, magnesium, nitrate, phosphate, and pH. Stable numbers matter more than chasing perfect numbers. Use this guide to understand each parameter, test correctly, and keep your reef healthy over the long term.

Reef Tank Water Parameters

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 temperature, salinity , pH, ammonia, or nitrate can result in some serious stress upon your tank inhabitants, algae blooms, and disease.

For most reef tanks , the ideal salinity range falls between 33-35 parts per thousand (ppt) or a specific gravity of 1.024 - 1.026. Fish-only saltwater tanks can tolerate slightly lower salinity , around 1.020 - 1.025. How to Maintain Salinity Use a refractometer or hydrometer to check salinity regularly.

Ideal Salinity

What is your ideal salinity . My tank is at 79 degrees F and has a specific gravity of 1.022. I read in ppt that that equates 31.6 ppt salinity . What is the ideal range you guys have success with??

Saltwater aquarium & reef salinity and specific gravity review and charts .

What Is the Best Salinity for a Healthy Reef Tank

To determine the salinity of the water in the reef aquarium, you can measure the specific conductivity or density of seawater. The most common tool to measure water's density is a hydrometer.

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 the...

What Salinity Should My Reef Tank Be

Ideal reef tank salinity is 1.024-1.026 specific gravity. Learn how to measure, maintain, and adjust salinity for healthy corals and fish.

Stable reef aquarium water parameters are the foundation of coral health, fish vitality, and long-term tank success. Focus on consistency first, then fine-tune key values like salinity , alkalinity, calcium, magnesium, nitrate, and phosphate to keep your reef growing and colorful. Introduction Many reef tank problems start with water chemistry.