My daughters tank (a 3-gal Eclipse) had a small crayfish (Cambarellus shufeldtii), 2 Ghost Shrimp and a mystery snail. Two nights ago the 2 ghost srimps just disappeared. Strange.... Shells and all, both gone. The cray is actually smaller then the ghost shrimps (about 1/2 inch), so unlikely he caught and ate them. Strange, do not know what happened. There is not enough decoration for them to disappear behind. The ghost shrimps were always the first to come out and "grab" food.
