Benallen--anenomes are temptermental, and need to get used to new lighting. It's likely that your lighting is stronger than that of the LFS, so the anenome is just adapting. It will move around until it finds someplace that it's happy. Make sure to feed it, though, no matter where it is.
wastememphis--the shrimp looking things are likely pods--not a bad thing, healthy, even. The others may be flat worms--common, and usually not a problem. You'll want to watch them, since many can be predatory or parasitic.