Description
Quantum Aragonite B 1L — Litre Bottle of Liquid Alkalinity Buffer for Mid-Size Reef Systems
A 300 L reef losing 0.2 dKH a day needs roughly 6 mL of buffer daily, and at that rate a litre is the sensible bottle. Quantum Aragonite B 1L (SKU: QA111000) is the alkalinity part of the three-part Aragonite system at that size, a buffer solution in deionised water formulated to be dosed with Aragonite A for calcium and Aragonite C for magnesium. The strength matches the smaller bottles, 1 mL per 100 L raising alkalinity by about 0.1 dKH, so a keeper moving up in size does not need to recalculate.
Quantum sets the alkalinity window at 7.4 to 10.5 dKH, or 132 to 188 ppm, and the daily rate at 0.5, 0.75 or 1.0 mL per 100 L for light, moderate or heavy consumption. Weekly testing shows which way to nudge the dose. The solution is suitable for dosing pumps, which is how a litre is most often used, and it should be delivered into high flow at a separate point from the calcium line so the two are diluted before they meet. At 0.75 mL per 100 L a litre supports a 300 L reef for about fifteen months.
Usage & Application
When to Use
- Mid-sized reefs: LPS, mixed and SPS systems from about 200 to 400 L.
- Doser reservoirs: A litre keeps an alkalinity channel running for months on a moderate tank.
- Maturing stony coral tanks: Systems whose daily alkalinity draw has grown with the colonies.
- Precise control: Keepers who want alkalinity adjusted independently of calcium and magnesium.
Dosing & Administration Guide
- Test, then set the rate: 0.5, 0.75 or 1.0 mL per 100 L per day depending on measured consumption.
- Separate from Aragonite A: Run the buffer into high flow at its own dose point or on its own pump line.
- Adjust gradually: Each 1 mL per 100 L moves alkalinity about 0.1 dKH; change the rate in small increments.
- Weekly tests: Keep readings within 7.4 to 10.5 dKH and revisit the dose as the tank develops.
Product Specifications & Highlights
Key Features
- Alkalinity only: A buffer in deionised water, so it can be tuned without affecting calcium or magnesium.
- Consistent strength: About 0.1 dKH per 1 mL per 100 L, the same as the smaller bottles.
- Published target: 7.4 to 10.5 dKH across SPS, mixed and LPS systems.
- Dosing-pump suitable: Runs cleanly through automated dosers, the usual way a litre of buffer is used.
- Three-part partner: Works with Aragonite A and Aragonite C so alkalinity can be tuned on its own.
Product Details
- Brand: Quantum (Reef Essential range)
- SKU: QA111000
- Barcode (GTIN/UPC): 0706502801298
- Product Type: Additives & Supplements > Alkalinity Buffer
- Net Volume: 1 L
- Dose Rate: 0.5, 0.75 or 1.0 mL per 100 L per day for light, moderate or heavy consumption
- Effect: 1 mL per 100 L raises alkalinity by about 0.1 dKH
- Target Range: Alkalinity 7.4–10.5 dKH (132–188 ppm)
- Dosing Pump: Suitable
- Target Environment: Reef aquariums, dosed with Aragonite A and C


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