Hanna Marine Magnesium Checker Reagents HI783-25 – 25 Pre-Measured Tests

Overview

The HI783-25 Marine Magnesium Checker reagents are replacement packs designed to work with the Hanna Marine Magnesium Checker HC (HI783). Each packet is pre-measured and clearly labeled with lot numbers and expiration dates for traceability, helping you stay organized as you test saltwater magnesium levels.

Designed as replacement reagents, HI783-25 emphasizes ease of use, accuracy, and quality. The reagents are prepared with high purity chemicals and are packaged to support quick testing without manual solution prep. The colorimetric EDTA method uses a calmagite indicator; when magnesium in the sample reacts with the reagent, the sample shifts from blue toward violet, and that color is read as magnesium concentration by the HI783 instrument.

What makes them useful

• Pre-made reagents for ease of use
• Prepared with high purity chemicals
• Marked with expiration date and lot number for traceability

How it works

To test, simply add the HI783-25 reagent packet to your prepared sample. The color change indicates the magnesium level, and the instrument reports the result in ppm. This setup is designed for fast, repeatable readings in saltwater samples.

Typical range and use

The reagents are tailored for saltwater tests with an expected magnesium range of 1,000 to 1,800 ppm. This makes them suitable for routine monitoring in marine aquariums or reef setups where stable magnesium tracking matters.

Tips for best results

• Store packets in a cool, dry place and check the expiration date before use
• Keep packets sealed and use them in the order indicated by lot numbers

With HI783-25 you gain reliable, ready-to-use reagents that support efficient, traceable testing. The emphasis on pre-measured portions and clear labeling helps simplify inventory and testing in hobbyist and professional marine setups.