The way I understood their reasoning... it adds the electrolytes to the water that salt provides. Now, that said, i have absolutely no idea about any of it. I mean, some people are going to hate the idea, but honestly, if the fish have everything they need, and aren't uncomfortable in the process, there's nothing wrong with it. But... I'm not so sure we can prove one way or another. I think it's best that things like this remain ideas rather than experiments.
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