I have a 10 gallon tank with 2 neons, a platty and 4 male guppies. Two of the guppies were brand new. All the fish seemed to be doing fine when I went to bed last night. When I woke up this morning, three of the guppies were gone. The lid was on and there is no sign they jumped out. We took apart the filter and they were not there. I moved all the plants and decorations, but nothing. There is no sign of the bodies or that any of them could be eaten. There is no way the platty fish could have eaten 3 in a matter of 9 hours, is there? We are just baffled and I'm very upset. I love my fish. I really want to know what could have happened. Thanks in advance.