Well, I'd like to keep it low in that range. My twin-spot goby, the only other inhabitant, does not seem affected by the cooler temps, and neither do my corals. So, I'll keep any eye on the goby, and if any signs of distress, I'll move him out. I have 3 new catalina gobies in QT, which I'll be putting in with the ponies. The temps will be good for them.
thx all!