Aquavascular Hardness Combo Kit

Aquavascular Hardness Combo Kit – GH + KH Test Kit for Freshwater Aquariums

The Aquavascular Hardness Combo Kit is designed to help aquarists quickly and accurately measure two vital water parameters: GH (General Hardness) and KH (Carbonate Hardness). These mineral levels influence fish health, shrimp moulting, plant growth, biological filtration and long-term pH stability. Regular testing ensures aquariums remain balanced and prevents sudden parameter shifts that may stress livestock.

This kit includes clear colour-change titration tests for both GH and KH, making it easy for beginners and advanced hobbyists to obtain accurate readings. Each drop represents 1 degree of hardness, allowing precise tracking of water chemistry over time.

Specifications for Aquavascular Hardness Combo Kit

• Product Type: GH + KH freshwater hardness test kit
• Tests Included: General Hardness (GH), Carbonate Hardness (KH)
• Method: Drop-based titration with colour change
• Suitable For: Freshwater, planted, shrimp & community tanks
• Reagents: GH solution + KH solution
• Accuracy: 1 drop = 1 degree hardness (°dH)
• Includes: Test vials, clear instructions, colour indicators

How to Use the Aquavascular Hardness Combo Kit

GH Test (General Hardness)

1. Take 5 ml of aquarium water in the test vial.
2. Add GH reagent drop by drop.
3. Shake after each drop.
4. Stop when the colour changes from orange to light green.
5. The number of drops used = GH in °dH.

KH Test (Carbonate Hardness)

1. Take 5 ml of aquarium water in the test vial.
2. Add KH reagent drop by drop.
3. Shake after each drop.
4. Stop when the colour changes from blue to yellow.
5. The number of drops used = KH in °dH.

Care & Maintenance Tips

• Test GH and KH weekly to maintain stable aquarium conditions.
• Higher KH levels help prevent sudden pH crashes.
• Shrimp tanks often require GH adjustments for proper moulting.
• Planted tanks benefit from stable GH to support nutrient uptake.
• Store reagents in a cool, dark place to preserve accuracy.
• Always rinse test vials thoroughly after use.