KH, and its importance

Information about KH, also known as… alkalinity, buffering capacity, and carbonate hardness.

KH – Buffering Capacity

KH is the solution’s ability to maintain a stable pH when an acid (H+ ions) is added. Therefore, it can also be described as a measure of the solution’s composition of bicarbonate (HCO3), carbonate (CO32-) and hydroxyl (OH) ions; as these ions readily react with added H+ ions and prevent them from decreasing the pH value.

Different species of shrimp can adapt to different ranges of KH, corresponding with the KH of their natural environment. It is therefore important to provide a suitable KH for the species in order to have healthy shrimp. Water with lower KH values are generally more susceptible to pH fluctations. The need to provide a stable pH often conflicts with the KH of the shrimp’s natural environment, and so a compromise must be established. Of course, the shrimp will naturally occur in water where the sheer volume prevents any significant pH changes. As aquaria have far smaller volumes of water, pH fluctuations can become a problem.

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: