Turtles and fishes are natural enemies my turtles have been eating fishes since they are babies also depending on how big a turtle they can eat fishes whole.
Update: I didn't discover anything in the filter, so that possibility is out. Another update: The other platy also disappeared when I tested to see if Bub would actually eat them, so now im like 80% sure that Bub is the killer. "The One Who Remains" is the last platy's name now
