Originally Posted by thekoimaiden
The moral of this story is to learn the limits of your fish.
Based on what people are saying here, it seems that fish can react in very different ways depending on any number of factors. . . Obviously, some people have had no problems with keeping "warm water" fish at the cool end of their temperature spectrum, while others are reporting that their fish showed signs of stress. . . Fish seem to me to be pretty adaptable little buggers, given time in a new situation, my guess is that most healthy fish would ultimately be fine at the lower temperatures, even if they did show some sluggishness at first. It may be a matter of 'getting used' to things.
That said, I know for sure that I wouldn't be tough enough to let my fish get through an adaptation process! First sign of any unusual behavior, and I'd dial that temp right back up. . . I'm too. . . attached? to my fish to push them at all if I can help it.