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Diagnosis Tool Dosage Calculator Where to Buy?

Koi Care - GH Minerals Up

GH mineral up 2

Provides minerals for growth, metabolism and other cellular processes.

General hardness minerals such as calcium and magnesium are essential for aquatic biological functions.  Such minerals are used in fish growth, metabolism and other physiological functions.  General hardness minerals can decrease over time due to influx of rainwater, soft tap water and biological processes using these minerals. NT Labs ‘GH – Minerals Up’ safely increases the GH providing an optimal habitat for your fish and other pond life.

Test your water quality first using Pondlab test kits.

From £17.99


Available in the following variations:

1.5kg, 5kg & 20kg

Where to Buy?

Simplified map of the United Kingdom.


Let us calculate your dosage for you!

To make the process of using our products even easier this handy dosage calculator tells you the amount you will need to put into your system. Please ensure you also read the instructions and warnings that are written on the bottle/pack label.

Note: This calculator does not take into account water displacement such as that caused by substrate, ornaments, water features and plants etc. Therefore, please adjust the calculated volume accordingly.

I know my system's measurements and want to:

Calculate my volume
Dosage calculator

Calculate dosage

You’ll require*
0 g

* Always follow the instructions on the label. This calculator is intended to be used only as a guide to how much product you need to buy to treat your system. It does not take account of displacement caused by gravel, rocks and ornaments etc and does not include the volume of any external filtration system. NT Laboratories Ltd. will not accept any responsibility for inaccuracies or misuse of this guide.