Hello again Paul...
I'm not an authority on shrimp. I used to keep them with my Livebearers and they were fine in pure water conditions.
Review your tank management routine and make sure you're doing everything necessary to maintain a stable water chemistry and that includes large, frequent water changes, routine filtration checks and media replacement if needed. If your plant situation allows it, do a good job of vacuuming the substrate. A lot of parasites will live there, vacuuming will remove them. Diet is important too, your fish and shrimp need a variety to be healthy.
I'm sure you know the drill. If you follow a sound tank maintenance routine, I see no reason to be concerned.
B