just this week, i had all three of my rams kick the bucket. spent a month in love with the little buggers, and then they all just up and quit life. perfectly healthy, no weird behavior, nothing so much as a territory dispute with any of their tankmates, until a couple days ago.
125 gallon, seriously understocked, million hiding place, fake-planted tank, which we do 20% water changes every sunday like clockwork. go figure!