Water Hardness and Success in Fish Farming
Although so many fish farmers do not understand the importance of water hardness to both fish health and water quality, this is because people thought fish farming is all about having a good water pH and so once they test the water pH and discovered it is good they careless about other water parameters like water hardness.
Please note the following facts about water hardness:
1. The water pH is majorly affected by Water hardness
2. The toxicity of many common substances, including some fish disease treatments are also influenced by water hardness.
3. Water hardness also play an important role on fish osmoregulation, a key factor to fish health.
Types of hardness:
According to research on this topic, there are two types of water hardness which are: permanent hardness and alkalinity (often referred to as carbonate or temporary hardness). The sum of both types of hardness is called the general or total hardness.

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Water Hardness and Success in Fish Farming
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Plz what is the remedy for Aluminium contamination? My water has high Aluminium content. I use a 2000 litres Storage/Supply tank. Thank you for your prompt response.