At the end of the day, I took a chance on a fish that wasn't eating at the LFS, I take full blame on that, but being told it's because my tank is immature turn me off!!! IMO an immature tank doesn't kill fish after 5 days, it takes a couple of week for fish to die from an immature tank. Not days! I really want to know if any other share the same opinion? That was going to die no mather what tank is was in!