Salt and plants-

[Brian]

So I was wondering just how much is a bad thing?  Sure, I know that depends on the type of plant and the type of salt and possibly starting water parameters.  Who knows what is in public water anymore.

But I was just wondering if anyone has found or have any credible information?  
 

Thanks

[Jungle Fan]

Here some very basic easy info:

https://sciencing.com/happens-put-saltwater-plants-6587256.html

The a little more in depth version, with the "yes, but" addendum:

https://www.fishtankworld.com/salt-in-freshwater-tanks/

Buts aside the one I generally subscribe to; with one exception which Diana Walstad describes on page 22 of her book "Ecology of the Planted Aquarium" to battle nitrite poisoning in goldfish, however I don't currently keep goldfish and my tank is heavily planted:

http://www.aquaworldaquarium.com/Articles/TonyGriffitts/Adding_Salt_to_a_Freshwater_Aquarium.htm

I deal with ammonia/ammonium by monitoring it and its cycled products (nitrite, nitrate) through continual water tests, having a working filtration system, and frequent water changes. If one of my fish is sick and needs treatment I generally quarantine the fish, raise the temperature, add meds, and/or salt depending on type of disease and recommendation in one of my fish health manuals like the "Handbook of Fish Diseases" by Dieter Untergasser, or "The Manual of Fish Health" by Dr. Chris Andrews, Adrian Exell & Dr. Neville Carrington. Other than that I don't use salt in my freshwater tanks.

I hope this helps and is what you were looking for; by the way if you are wondering about your public water you can request the annual water quality report from  your local water district and they do have to provide it, mine does so on its website and I generally print it out once a year to see if there were any changes. In the past there were times phosphate used to be a problem because it was added to inhibit metallic pipe corrosion, and as run off from farm fields. With the advent of PEX plumbing made from silicone and added steps in filtration they improved water quality.