This is the same ol retread disagreement. Some people believe in salt, others don't. When you transport fish the water in the tanks/bags is less than the salt in the fish. It just decreases the osmotic gradient bteween the fish and the transport water.
Putting it in the soil is totally different. It is not a temp fix. It is not changing the ppm of salt in the water for proper levels. It is uncontrolled salinity of the watershed. If the pond is on the high side already it can push it over the edge. Salt is highly soluable. It naturally leaches out of soil into water.
I don't use salt in fish I transport because I use the water they live in, and don't need to address osmoregulation. I don't use sedatives, I don't use antimicrobial. Salt baths do not improve a fishes health. Just take a look at the Salton Sea, Tilapia will soon be the only species to survive there.
I don't use homemade weed killers, I don't use salt on fish. I don't put salt on soil, or my food. I really don't care who agrees or disagrees. To me salt is toxic to fish and plant life.
