My house air conditioning gave out yesterday and the temperature of my house is rising steadily. We cannot get someone to come out and fix it soon enough. My 8 gallon nano tank is currently at 83.6 and the temperature keeps rising. I currently have a fan pointed at the water surface but it can only do so much. How can I bring down and keep down the tank temperature? Can I add RODI ice cubes or cold water or would that shock the fish and corals? This is a mixed tank with all inexpensive or easy corals. There are zoas, monti caps, chalice, pagona, and clove polyps so far. The only fish is a damsel and there is a small CuC with hermit crabs, astrea snails, and a tiger conch. There is also an expensive bubble tip anemone... please help!