hi
from what i remember they a hard to keep in a general set up as they are filter feeders and can easily starve to death slowly
sorry i dont know anymore than they filter feed oh and dig in to the substrate
regards scot
Corbicula fluminea dont have parasitic larvae, you'll probably want to avoid the other species for other reasons listed in the links provided above .
Remember to think of them as animals that need their own special care, and not just pieces of decoration.
Rock shrimp would be fine as long as the tank was big enough and has enough hiding places for when the shrimp sheds its skin, but will need to be fed crushed flake food in the area it is filter-feeding at least every couple of days too.