Thank you I'm going to try one and see how he does. Thank youI've given ghost shrimp to my turtles many times over the years. I've never seen any ill effects from it and they seem to enjoy hunting around for them. That said, I don't know how long it would take for parasites to be an issue. Its been ~4 years since the first time I gave them ghost shrimp.
I assume its either a different supplier not having parasites, luck, or that the turtles don't care as much as cichlids which are pretty finicky (as far as I'm aware).