Hanna Marine Ultra Low Phosphate Checker Digital HI774

Hanna Marine Ultra Low Phosphate Checker Digital HI774

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The Ultra Low Range Phosphate Checker by Hanna gives easy, accurate and fast results for measuring Nitrates in your aquarium

Marine Phosphate Ultra Low Range Colorimeter – Checker HC 774

The HI774 Checker® HC (Handheld Colorimeter) provides a simple, accurate and cost effective way to measure phosphate from 0.00 to 0.90 ppm.

Phosphorus is an important parameter to measure in aquaculture and aquariums; levels that are too high can lead to extensive algae growth, depleted dissolved oxygen levels, and ultimately can be fatal to many types of fish and aquatic life.

Designed as a more accurate alternative to chemical test kits, the HI774 provides quick, accurate results in a few easy steps.

Features at-a-glance:


The HI774 Ultra Low Range Phosphate Checker HC (Handheld Colorimeter) is a cost-effective way to measure phosphate in marine systems, including reef tanks.

Testing for phosphates is standard practice for saltwater aquariums and provides valuable insight into your reef tank’s water chemistry to help ensure long-term coral health.

Phosphates are one of the many forms of phosphorus compounds found in marine waters.

Excessive phosphate levels can prevent calcification, skeletal formation, and growth of many coral species, particularly those referred to as SPS or small-polyp stony.

In addition, high phosphate levels can cause nuisance algae growth in your reef tank.

This can become problematic because algae often out competes sessile organisms for light, nutrients, and space, jeopardising long term coral health in your reef.