Description
The Salifert Core Alkalinity, Calcium, and Magnesium Combo Test Kit is a professional-grade testing suite designed specifically for reef aquarium hobbyists. This "Big 3" bundle provides the essential tools needed to monitor and maintain the chemical foundation of a healthy saltwater environment.
Product Overview
In a reef tank, Calcium (Ca), Alkalinity (KH), and Magnesium (Mg) are inextricably linked. This combo kit allows you to track these parameters with high precision, ensuring that your corals have the necessary building blocks for skeletal growth and that your water remains chemically stable.
Key Features & Benefits
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The "Big 3" Synergy: These three elements work together. Magnesium prevents the chemical precipitation of calcium and carbonate, making it possible to maintain the high levels of both required for coral health.
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High Precision Titration: Unlike basic "dip strips," these kits use professional titration (color change) methods to provide exact numerical values.
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Clear Color Transitions: Known for "sharp" color changes, Salifert kits make it easy to identify the exact endpoint of a test, reducing the guesswork found in other brands.
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Cost-Efficient Bundle: Purchasing the combo kit is more economical than buying each individual Profi-Test kit separately.
Component Breakdown
1. Magnesium (Mg) Profi-Test
Magnesium is the "buffer" that keeps calcium and alkalinity in solution.
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Function: Ensures corals can actually use the calcium provided to them.
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Resolution: Measures in steps of 30 mg/L.
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Interference-Free: Specially formulated so that calcium and strontium do not interfere with the results.
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Capacity: Approximately 50 tests.
2. Calcium (Ca) Ultra Test
Calcium is the primary building block for hard corals and calcareous algae.
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Function: Essential for the calcification and growth of reef inhabitants.
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Resolution: Extremely sensitive, detecting fluctuations as small as 10 mg/L.
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Capacity: Approximately 50–100 tests (depending on concentration).
3. Carbonate Hardness & Alkalinity (KH/Alk)
Alkalinity is the measure of the water's buffering capacity and its ability to resist pH swings.
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Function: Provides the carbonates needed for coral skeletons and maintains pH stability.
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Resolution: Highly accurate steps of 0.1 meq/L or 0.3 dKH.
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Capacity: Approximately 100–200 tests.
Why Salifert?
Salifert is widely regarded by the reefing community as the "gold standard" for home testing. Their kits are preferred because they offer laboratory-level accuracy without the need for expensive electronic monitors. Each kit includes high-quality syringes, test vials, and detailed instruction manuals with conversion tables to turn your titration results into PPM or dKH values instantly.
