NEVER GO ON VACATION FOLKS !!
I have an 90 gallon oceanic tank with 4 Heniocus, 1 Blue Hippo, 4 Clowns, 1 Flame Angel, and 1 Yellow Tang.
Went to Vegas last Thursday for vacation (I live in Dallas, TX) and the temp. here at home was 78. No problem for the tank. Came back, temp. HERE in Dallas...