Sorry to hear about your loss. things like that always make you question being in the hobbie, but its a addiction that is hard to quit. i had somthing like this happen in one of my old tanks i left town and had my cousin feed my fish feeders (which i didn't do). something got in the tank and killed almost everything couldn't figguar out what was goin till he told me a about the feeders, that was the only thing i could think of.
