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Seachem MultiTest pH & Alkalinity is a high-precision aquarium test kit designed specifically for marine and reef aquariums. It features a unique dye system with a clear, pronounced color change between pH 8.0 and 8.3, making it the easiest and most accurate kit to read in this critical reef-safe range. Using a single water sample, aquarists can accurately measure both pH and alkalinity, with alkalinity readings available in 0.5 meq/L increments. The kit performs over 75 tests and includes a reference sample for test validation, ensuring consistent and reliable results every time.
Designed for marine & reef aquariums
Clear color change between pH 8.0–8.3
Measures pH & alkalinity from the same sample
High-resolution alkalinity readings (0.5 meq/L increments)
Performs 75+ tests
Includes reference sample for accuracy validation
Easy-to-read, professional-grade results
Brand: Seachem
Product Name: MultiTest™ Marine pH & Alkalinity
Aquarium Type: Marine / Reef
Test Parameters: pH & Alkalinity
pH Range Focus: 8.0–8.3
Test Count: 75+ tests
Reading Method: Colorimetric
Reference Sample: Included
Routine monitoring of marine & reef aquariums
Essential for maintaining stable reef chemistry
Ideal for coral, invertebrate & marine fish systems
Use alongside Seachem buffers & supplements for precision control
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