Keep your reef aquarium water testing accurate and consistent with Hanna Marine Ultra Low Range Phosphate Checker Reagents (HI774-25). Designed specifically for the Hanna HI774 Phosphate ULR Checker, these genuine replacement reagents provide everything you need to perform 25 phosphate tests in your saltwater aquarium.
Phosphate is one of the most important nutrients to monitor in a reef tank. While small amounts are essential for coral health, excessive phosphate can contribute to unwanted algae growth and interfere with coral skeletal development. Regular testing helps you maintain balanced nutrient levels and a healthy marine aquarium.
Key Features
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25 Tests Per Pack – Includes 25 individually packaged reagent sachets for convenient phosphate testing.
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Designed for Hanna HI774 – Specifically formulated for the Hanna Marine Ultra Low Range Phosphate Checker HC.
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Ultra Low Range Testing – Suitable for measuring phosphate concentrations between 0.00 and 0.90 ppm when used with the HI774 Checker.
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Pre-Measured Reagents – Convenient powder sachets make testing straightforward without manually measuring chemicals.
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Reliable Results – Manufactured using high-purity chemicals to support accurate and consistent measurements.
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Batch Traceability – Each reagent packet is marked with a lot number and expiration date.
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Ideal for Reef Aquariums – Perfect for monitoring phosphate levels in marine systems containing SPS, LPS and soft corals.
Product Specifications
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Brand: Hanna Instruments
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Product Code: HI774-25
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Testing Parameter: Phosphate (PO₄³⁻)
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Quantity: 25 tests
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Compatible Checker: Hanna HI774 Marine Phosphate Ultra Low Range Checker HC
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Measurement Range: 0.00–0.90 ppm phosphate
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Testing Method: Ascorbic Acid Colorimetric Method
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Suitable For: Saltwater and reef aquariums
Why Is Regular Phosphate Testing Important?
Maintaining stable phosphate levels is an essential part of successful reef keeping. Excessive phosphate can encourage nuisance algae growth and negatively affect coral calcification, while levels that are too low can also be detrimental to coral health.
Regular testing allows you to monitor nutrient trends, evaluate the effectiveness of phosphate-removing media and make informed adjustments to feeding, filtration and nutrient export.
The Hanna HI774 Checker provides easy-to-read digital phosphate measurements, making it an excellent choice for reef keepers who want greater control over their aquarium's water chemistry.
Important Compatibility Information
These reagents are specifically designed for the Hanna HI774 Marine Ultra Low Range Phosphate Checker. They are not interchangeable with reagents used by the Hanna HI736 Phosphorus Ultra Low Range Checker.
Please Note: This product contains replacement reagents for 25 tests. The Hanna HI774 Checker testing device is sold separately.
