Hardness Test KitThe hardness of water can be just as critical to the well being of an aquarium as pH. In fact with many fish it can mean the difference between good health and poor health, or death.
Aquasonics Hardness test kit measures total hardness and uses the Australian way of measurement, ppm, so it is very easy to understand. It measures in steps of 10ppm which means more accuracy. Most of the popular test kits on the market today do steps of 17.9ppm which means by Aquasonic being able to do smaller steps your results are more accurate.
Comes complete with a colour chart so you know what colour you should start off with and what the final result should be. Replacement reagents are available in both 15ml, 100ml and 1 litre sizes at economical prices.