There are several species of shrimp sold as ghost shrimp. Some do not require brackish (american glass shrimp i think its called) others do. The shrimp go through a larvael stage, so they often get sucked into the filter intake. You can try and cover it with a media bag or sponge. Do you have a picture of your shrimp?
I honestly would not move/stresss her if you are unsure of species. If she iss the species which can reproduce in fw, just leave her in the tank. Moving her can stress the shrimp and cause her to drop her eggs.