I was browsing for a salt document and I found a web site with someone who should know better, recommending that people salt their ponds all the time, to maintain a moderate 0.1% solution of salt all the time.
Not a good idea.
Fish and plants don’t ‘thrive’ that way. Your fish could be doing “okay” with salt all-the-time, but they’d be doing better and more vigorously without it. Besides, parasites get used to it.
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Dr Erik Johnson is a Marietta, Georgia Veterinarian with a practice in small animal medicine. He graduated from University of Georgia with his Doctorate in 1991. Dr Johnson is the author of several texts on Koi and Pond Fish Health and Disease as well as numerous articles on dog and cat health topics.