Fish reared in hard water are more susceptible to columnaris disease

For most people, the choice between soft and hard water for everyday use is a matter of preference or geography. Both types have pros and cons. But for catfish, water hardness can make a difference in the development of columnaris disease, which is caused by the bacterium Flavobacterium columnare. Columnaris disease causes skin and gill lesions, can occur in any freshwater fish species, and costs the U.S. aquaculture industry $40-50 million each year.

Read the whole article on Physorg

More from Physorg