I came home today to find my P. Mur. dead as can be ! She was a 3.5 inch female that I have had for almost a year.What is bothersome is that I have no idea why. All my other T.s are fine, right down to my smallest sling. This is the first one I have lost and what pains me the most is that I have no reason for it,:wall: she was perfectly healthy and had been eating a crik. per week until now, her last meal was still alive and kicking. 
So sorry to hear about your OBT. Even those little devils get under our skin. I just lost a sling so I know how you must feel. Sounds like you did everything right, sometimes it just happens. Awful not to know. Sometimes what's worse than death is not having the finality of knowing what happened. I have gone through that before, so I know how you're feeling. At least it sounds you were doing everything right.