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ABC Reagents

ABC Automated Testing Reagents, 6-Month Supply

ABC Automated Testing Reagents, 6-Month Supply

Regular price $73.99
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6-Month Supply of ABC Automated Testing Reagents (Alkalinity, Calcium, and Magnesium)

The ABC Automated Testing Reagents are laboratory-quality reagent solutions formulated specifically for automated aquarium water testing systems. They measure the three parameters most critical to reef aquarium stability — alkalinity (kH), calcium (Ca), and magnesium (Mg) — with consistent, repeatable results across batches. The reagents are compatible with most automated testing systems on the market and can also be used for manual verification testing when needed.

The system uses three reagents: Reagent A targets alkalinity, while Reagents B and C work together for calcium and magnesium analysis. Each bottle is 250ml. Supply packs are also available in 2-month and 4-month durations, aligned with standard automated system testing frequencies, giving hobbyists a straightforward way to stay stocked without ordering individual bottles.

Calibration solution is not included with any supply pack. The system must be calibrated before first use. CoralVue recommends the Fauna Marin Multi-Reference Solution as the highest-accuracy calibration option — it is an ICP-tested, saltwater-matrix reference with certified values. Alternatively, any trusted manual test kit (Salifert, Fauna Marin, Red Sea, API) or any water source with known, verified parameter values can be used for calibration. Detailed calibration procedures are available at the link in the Instructions tab below.

Due to the chemical nature of this product, ABC Reagents are non-returnable once shipped.

Key Features:

  • Reagent solutions for automated measurement of alkalinity, calcium, and magnesium in reef aquariums
  • Compatible with most automated aquarium testing systems; manual verification testing also supported
  • Three-reagent system: Reagent A (alkalinity), Reagent B (Ca/Mg), Reagent C (Ca/Mg) in 250ml bottles
  • Consistent formulation across all batches for reliable, repeatable results
  • 24-month shelf life unopened; store at room temperature away from direct sunlight
  • Calibration solution not included; system must be calibrated before first use
  • Non-returnable once shipped

Ideal For:

  • Reef hobbyists running an automated testing system who need a consistent, laboratory-formulated reagent supply for alkalinity, calcium, and magnesium monitoring
  • Aquarists who want to reduce manual testing workload while maintaining accurate, repeatable parameter tracking

Pro Tips:

  • Calibrate before first use and after any extended gap in testing. Automated testing systems rely on accurate calibration to produce meaningful results. Do not skip this step. For the highest accuracy, use the Fauna Marin Multi-Reference Solution, which provides ICP-verified values in a saltwater matrix that matches reef aquarium water chemistry.
  • Cross-check automated readings with a trusted manual test kit periodically. Even well-calibrated automated systems benefit from occasional manual verification. Running a Salifert or Fauna Marin manual test alongside your automated results confirms the system is reading accurately between calibration intervals.
  • Store reagents at room temperature and away from direct sunlight. Reagent chemistry is sensitive to heat and light. Proper storage is essential to maintaining the 24-month shelf life and ensuring consistent results throughout the pack duration.
  • Order your next supply pack before the current one runs out. Automated testing system downtime while waiting for reagent delivery can leave you without parameter data during that gap. The 4-month and 6-month packs give you a built-in buffer, but keep an eye on remaining volume and reorder before the last bottles are exhausted.
#1 Recommended Reference Solution

Fauna Marin Multi Reference


With Fauna Marin Multi-Reference Solution, you can test your home test kits under accurate conditions. The Reference Solution is the first to be based on a saltwater matrix and is quality-tested using Fauna Marin's ICP-AES machine.


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