next day.. still havnt 'found missing guppie , other one died overnight ,found that body, another one looking sickly, no angels only other fish that can be a bully is a flying fox and he is usually to occupied with chasing and disturbing the corys, they seem to have got used to him ,have had the tank for 2 years,have had the guppies a couple of weeks ,never lost fish on this scale before, all other fish are fit and well ,is their something that effects guppies only.. jackie