AquaVascular GH KH Test Kit

This Aquavascular test kit measures general and carbonate hardness, key parameters for maintaining stable freshwater aquarium chemistry.

General Hardness (GH)

General Hardness (GH) refers to the total concentration of divalent metal ions in the water. These are typically calcium (Ca²⁺) and magnesium (Mg²⁺) ions. GH is measured in degrees of hardness (dH) or parts per million (ppm), with one degree of hardness equivalent to 17.9 ppm.

Impact of General Hardness:

• Aquatic life: Certain species of fish and aquatic plants thrive in water with specific hardness levels. Sudden changes in GH can stress or even harm aquatic organisms.

Carbonate Hardness (KH)

Carbonate Hardness (KH), also known as alkalinity, refers to the concentration of carbonate (CO₃²⁻) and bicarbonate (HCO₃⁻) ions in the water. KH is a measure of water's ability to neutralize acids and is also expressed in degrees (dKH) or ppm.

Impact of Carbonate Hardness:

• pH stability: KH acts as a buffer, helping to maintain stable pH levels in water. This is crucial for both aquatic ecosystems and industrial processes.
• Aquarium and aquaculture management: Maintaining appropriate KH levels is essential for the health of fish and aquatic plants, ensuring a stable and suitable environment.

Freshness & Storage

Every batch we dispatch carries a minimum of 6 months' remaining shelf life. Store this product in a cool, dry place away from direct sunlight, with the cap or inner foil closed tightly after each use.

Returns & Replacement

Returns are accepted within 7 days of delivery, provided the item is unused and in its original packaging. Manufacturer-sealed items cannot be returned once the seal is broken, and sale-priced items are not refundable.

If your item arrives defective or damaged, message us on WhatsApp with your order number — or email us, if you would rather — and we will replace it. Approved replacements are delivered within 3 to 5 business days. Transit damage is covered by insurance on every shipment. If tracking shows delivered but nothing reached you, tell us within 72 hours, which is the reporting window Indian couriers allow. Damage caused during installation or use is not covered; replacement spares for such cases are chargeable.

Full terms are on our Cancellation & Returns page.