When you do regular large water changes you don't change parameters. The large regular water changes ensure that there's not enough shift between tank and tap in the long run, at any given time. When you buy shrimp they're not acclimated to your tap/tank water, hence in that case you need to acclimate. But once that's done,shrimp are acclimated to your tank water, then one needs to ensure that in the long run tank and tap/source water should not differ by any measurable parameter if one's doing enough water changing, and there'll be no more shock. I have a TDS meter and go by that but generally one large weekly water change will be enough to keep things stable as long as one doesn't skip it...
Everywhere I read about shrimp, people keep advising about doing small water changes, etc...and keep getting dead shrimp....shrimp not breeding fast enough, shrimplets not surviving, etc....Now why don't people try large very regular water changes and the deaths and issues will stop....This applies to fish also.
,,,,User error....and again lack of water changes with proper stable water....
