I just suffered my first loss in almost 3 months of fish keeping. My thinbar died of unknown causes last night. I got him last Sunday and he haven't eaten anything since. It was acting a bit slugging last night and when I woke up this morning to check on my fishes, the thinbar was stuck at the Penguin 350 intake tube. That kinda sucks 'coz I've only had it for 3 days. Oh well, I guess you learn and you go on. All my water parameters are acceptable but not pristine. Pictures of the thinbar is in my other thread asking about how I can make my water clearer.