VASTOCEAN Precision Salinity 35ppt Calibration Solution – Professional Grade Standard for Marine Aquariums

Ensure the health and stability of your reef with the VASTOCEAN Precision Salinity 35ppt Calibration Solution. In a marine aquarium, even a slight drift in salinity can stress sensitive corals and invertebrates. This lab-quality reference fluid is specifically formulated to provide a pinpoint accurate 35ppt (1.0264 S.G.) benchmark, allowing you to calibrate your equipment with total confidence.

Why Calibrate with 35ppt Fluid?

Many hobbyists make the mistake of calibrating their refractometers with RODI water (0ppt). However, most refractometers are most accurate near the point at which they are calibrated. By using VASTOCEAN 35ppt solution, you are calibrating your device at the exact target level of natural seawater, eliminating the "slope error" that occurs with freshwater calibration.

Key Features & Benefits

• True 35ppt Standard: Perfectly matched to natural seawater salinity (35ppt / 1.0264 S.G. / 53mS/cm).

• Universal Compatibility: Works with all brands of optical refractometers, digital salinity testers, and conductivity probes.

• Laboratory Grade Precision: Formulated under strict quality control to ensure a stable refractive index.

• Critical for Reef Success: Regular use prevents salinity creep, protecting delicate SPS corals and marine life from osmotic shock.

How to Use for Maximum Accuracy

1. Clean your refractometer prism with fresh RODI water and dry thoroughly with a soft cloth.

2. Place 2–3 drops of the VASTOCEAN Calibration Solution on the prism.

3. Wait 45–60 seconds to allow the ATC (Automatic Temperature Compensation) to equalize.

4. Adjust the calibration screw until the boundary line rests exactly at 35ppt / 1.026 S.G.

5. Wipe clean and you are ready to test your aquarium water with professional accuracy.

Technical Specifications