Description
Quantum Aqua Pro GH 5L — Bulk Freshwater GH Minerals for Ponds, Shops and Breeders
Pond keepers and shops remineralise water by the hundred litres, and the 5 L container is the sensible way to buy the minerals for it. Quantum Aqua Pro GH 5L (SKU: QA425000) is the bulk size of Quantum’s Freshwater Essential Plant Essential Aqua Pro GH, a solution of bioavailable magnesium and calcium with trace elements in deionised water, formulated to raise general hardness gently and supply the essential elements freshwater life depends on. It suits every type of freshwater system, and Quantum publishes a GH target for each, from soft Amazon water to the hard lakes of East Africa.
The 5 L container has a 20 mL capful, so the dose is half a capful, about 10 mL, per 100 L for a rise of roughly 2.5 dGH, added into high water flow without shaking. Change water alone is dosed, never evaporation top-ups. Quantum’s targets include 3 to 6 dGH for goldfish and koi and 5 to 10 for Malawi. A fish room conditioning 500 L a week from RO to 5 dGH uses 100 mL, so 5 L lasts about fifty weeks; a 3,000 L pond raised 2.5 dGH at fill takes 300 mL. Dosing pumps are not suitable.
Usage & Application
When to Use
- Ponds: Goldfish and koi ponds on rainwater or soft fill water, dosed to 3 to 6 dGH.
- Retail freshwater systems: Shops remineralising a central reservoir for mixed stock.
- Breeders and fish rooms: Hundreds of litres of RO conditioned each week.
- Very large displays: Freshwater tanks past 1,000 L remineralising hundreds of litres a week.
Dosing & Administration Guide
- Target by system: Use Quantum’s table for each pond or tank type.
- Half a 20 mL capful per 100 L: About 10 mL for 2.5 dGH, scaled to the volume conditioned.
- Dose the reservoir or into flow: No shaking; change water only, not evaporation.
- Complete with KH: Aqua Pro KH for carbonate hardness alongside.
Product Specifications & Highlights
Key Features
- Bulk mineral supply: 5 L of bioavailable calcium and magnesium with trace elements.
- Same strength: About 10 mL per 100 L for 2.5 dGH, measured as half the 20 mL capful.
- Pond and shop economy: Around fifty weeks at 500 L a week from RO.
- All freshwater types: Published targets for ten categories of tank and pond.
- Aqua Pro companions: Works with Aqua Pro KH, pH Up, pH Down and Aqua Pro Salt.
Product Details
- Brand: Quantum (Freshwater Essential Plant Essential range)
- SKU: QA425000
- Barcode (GTIN/UPC): 0769807350618
- Product Type: Additives & Supplements > Freshwater GH Mineral Salt
- Net Volume: 5 L
- Contents: Deionised water, bioavailable magnesium and calcium, trace elements
- Dose Rate: ½ capful (about 10 mL) per 100 L raises GH by about 2.5 dGH; dose change water only, not evaporation top-ups
- Capful: About 20 mL
- Target Ranges: South American 1–3; American/Australian 2–4; Victoria, goldfish and low-tech planted 3–6; community, shrimp and high-tech planted 4–8; Malawi 5–10; Tanganyika 7–12 dGH
- Dosing Pump: Not suitable
- Target Environment: Planted, fish-only, shrimp and pond freshwater aquariums


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