Keep your reef aquarium water testing accurate and reliable with Hanna Marine Phosphorus Ultra Low Range Checker Reagents (HI736-25). Specially designed for the Hanna HI736 Phosphorus ULR Checker, these replacement reagents provide everything needed to perform 25 phosphorus tests in your saltwater aquarium.
Monitoring phosphorus is essential for maintaining healthy nutrient levels in a reef tank. Excessive phosphorus can contribute to unwanted algae growth and interfere with coral calcification, making regular testing particularly important for SPS and LPS coral systems.
Key Features
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25 Tests Per Pack – Contains 25 individually packaged reagent sachets for convenient phosphorus testing.
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Designed for Hanna HI736 – Specifically formulated for the Hanna Marine Phosphorus Ultra Low Range Checker HC.
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Ultra Low Range Testing – Suitable for measuring phosphorus concentrations between 0 and 200 ppb.
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Pre-Measured Reagents – Convenient powder sachets eliminate the need to measure chemicals manually.
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Reliable Results – Manufactured using high-purity chemicals for consistent testing.
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Batch Traceability – Each packet features a lot number and expiration date.
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Ideal for Reef Aquariums – Perfect for monitoring nutrient levels in marine aquariums containing sensitive corals.
Product Specifications
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Brand: Hanna Instruments
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Product Code: HI736-25
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Parameter: Phosphorus (P)
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Quantity: 25 reagent packets
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Compatible Checker: Hanna HI736
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Testing Range: 0–200 ppb phosphorus
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Testing Method: Ascorbic Acid Colorimetric Method
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Suitable For: Marine and reef aquariums
Why Regular Phosphorus Testing Matters
Phosphorus is closely related to phosphate, one of the key nutrients reef keepers monitor to maintain healthy coral growth and prevent nuisance algae.
The Hanna HI736 measures phosphorus in parts per billion (ppb), providing excellent sensitivity for low-nutrient reef systems. Results can also be converted to phosphate concentrations if required.
Regular testing helps you track nutrient trends, evaluate your filtration system and maintain stable water parameters.
Important Compatibility Information
These reagents are designed for the Hanna HI736 Phosphorus Ultra Low Range Checker only. They are not interchangeable with the reagents used by the Hanna HI774 Phosphate ULR Checker.
Please Note: This product contains replacement reagents for 25 tests. The Hanna Checker testing device is sold separately.
