Why do my fish keep disappearing from my aquarium?

Well, honey, unless your fish have developed legs and are pulling a disappearing act, it's likely they're becoming snacks for some sneaky tank mates. Fish are notorious for being little opportunistic cannibals, so keep an eye out for any fin-nicking culprits in your aquatic community. And maybe consider upgrading your security system before your aquarium turns into a full-blown underwater crime scene.