Description
Quantum American/Aust pH Buffer | KH Conditioner 5L — Bulk Buffer Pro for Cichlid Breeders and Native Fish Rooms
Native fish breeders and cichlid wholesalers condition water by the barrel, and a 5 L container of buffer is the practical way to keep up. Quantum American/Aust pH Buffer | KH Conditioner 5L (SKU: QA355000) is the bulk size of Quantum’s American/Australian Buffer Pro, a solution of safe KH and pH salts in deionised water that raises carbonate hardness to the chosen level while regulating pH to match the American lakes and Australian waterways. It is meant to be used with American/Australian Pro Salt GH, because the balance of temperature, GH, KH and pH is what keeps a hard-water aquarium stable.
The rate is unchanged from the bottles: 10 mL per 100 L raises KH by 1 dKH, and only the replacement volume is dosed at a water change. Recommended levels are 3 to 6 dKH with pH 7.5 to 8.5 for American cichlid and Australian native tanks. A fish room conditioning 500 L a week from RO water to 4 dKH uses 200 mL, so 5 L covers around twenty-five weeks; a single 500 L display at the same rate would run for close to two years.
Usage & Application
When to Use
- Cichlid and native breeders: Fish rooms conditioning hundreds of litres of change water a week.
- Retail hard-water systems: Shop tanks holding American cichlids and Australian natives.
- Very large displays: Predator and native tanks past 1,000 L changing hundreds of litres a week.
- Mixing stations: One container treating a reservoir that supplies several tanks on the same chemistry.
Dosing & Administration Guide
- Target 3 to 6 dKH, pH 7.5 to 8.5: The same on every tank fed from the reservoir.
- Dose the reservoir: 10 mL per 100 L for each 1 dKH of rise, on the volume conditioned.
- Change water only: Treat the replacement water, not the whole system.
- Keep GH in step: American/Australian Pro Salt GH alongside for general hardness.
Product Specifications & Highlights
Key Features
- Bulk KH and pH buffer: 5 L of safe KH and pH salts for hard-water fish rooms.
- Published targets: 3 to 6 dKH and pH 7.5 to 8.5, applied across every tank in the room.
- Same simple rate: 10 mL per 100 L per 1 dKH, as on the bottles.
- Economy for fish rooms: Months of conditioning for many tanks from one container.
- System pairing: Runs with American/Australian Pro Salt GH.
Product Details
- Brand: Quantum (Freshwater Essential range)
- SKU: QA355000
- Barcode (GTIN/UPC): 0706502800994
- Product Type: Additives & Supplements > Freshwater pH & KH Buffer
- Manufacturer Name: American/Australian Buffer Pro pH | KH
- Net Volume: 5 L
- Contents: Deionised water, safe KH and pH salts
- Dose Rate: 10 mL per 100 L raises KH by 1 dKH; during a water change, dose only the volume replaced
- Target Ranges: 3–6 dKH; pH 7.5–8.5
- Companion Product: American/Australian Pro Salt GH
- Support: Free Quantum Aqua dosing app with instructional videos
- Target Environment: American cichlid and Australian native freshwater aquariums


There are no reviews yet.