a little history:
i was losing inverts (shrimp, sally's, emeralds) like mad. my pistol shrimp was the only thing seeming to survive. I figured my water parameters were bad, even though the tests were ok. my peppermints were the first to disappear. then my sally light foot, then my emeralds. no shells to be found.
I changed out my tank, and i found no shells.
so i figured, let me add some more peppermints and another sally.
they were gone in a week.
then i got sick of it and posted about it, and someone linked me that video. i have no doubt it was the pistol.