Description
Aqua-Pics Pond GH Salt 4.5kg — Mineral conditioner for goldfish and koi pond water
Rainwater-fed ponds and tank water low in dissolved minerals leave goldfish and koi without the general hardness they need for healthy osmotic balance. Aqua-Pics Pond GH Salt 4.5kg (SKU: 102468) is Aqua-Pics’ phosphate-free mineral conditioner for pond water, formulated to raise general hardness (GH) and add the minerals, elements and trace elements that tap water and rainwater often lack but goldfish and koi need. Aqua-Pics’ directions are one rounded teaspoon, or 8 g, to 10 L of water, which raises GH by about 14 dGH (250 ppm) and lifts pH to above 7.4. At that rate the 4.5 kg pack treats roughly 5,625 L of pond water for one full application.
General hardness is the measure of dissolved calcium and magnesium salts that fish use to regulate water movement in and out of their cells; water that is too soft forces goldfish and koi to work harder at osmoregulation, and soft water also tends to run a lower, less stable pH. Raising GH with a mineral salt like this one addresses both at once, lifting hardness and nudging pH up toward the mildly alkaline range koi and goldfish prefer. The 4.5 kg pack suits a mid-size ornamental pond or several smaller ponds being treated from one stock of product, with repeat doses needed after rain dilution or partial water changes rather than only once at setup.
Usage & Application
When to Use
- New pond fill: Tap or rain water tested low on GH before stocking.
- After heavy rain: Dilution from rainwater runoff softening the pond.
- Partial water changes: Replacing some pond volume with soft tap water.
- Low pH alongside soft water: Ponds where pH sits low along with GH.
Mixing & Application Guide
- Measure by volume: One rounded teaspoon, or 8 g, per 10 L of pond water.
- Dissolve before adding: Mix into a bucket of pond water first, then distribute around the pond.
- Expect the rise: About 14 dGH (250 ppm) GH increase and pH above 7.4 at the stated rate.
- Retest after dosing: Confirm GH and pH before assuming the pond is corrected.
Product Specifications & Highlights
Key Features
- Phosphate-free: No added phosphate load to pond water.
- Raises GH and pH together: One product addresses both low hardness and low pH.
- Adds trace minerals: Elements often missing from tap water and rainwater.
- Measured dose: 8 g per 10 L for a predictable, repeatable correction.
- 4.5 kg pack: Treats roughly 5,625 L per full application at the stated rate.
Product Details
- Brand: Aqua-Pics (Australia)
- SKU: 102468
- Barcode (GTIN/EAN): 9336264004319
- Product Type: Additives & Supplements > Pond GH Conditioner (Mineral Salt)
- Net Weight: 4.5 kg
- Formula: Phosphate-free mineral salt with trace elements
- Dose Rate: 8 g (1 rounded teaspoon) per 10 L
- Treatment Capacity: About 5,625 L per application at the stated rate
- Effect: Raises GH by approximately 14 dGH (250 ppm); raises pH above 7.4
- Other Sizes: 20 kg (SKU 113021)
- Target Environment: Goldfish and koi ponds


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