I figured the A/C would have to go on. Thanks for posting what you did. I can't get away with out A/C during the summer either because it will be 35C plus and we live in a townhouse (one side only has windows), that heats up pretty fast. If I didn't have A/C units I would have to put my cages in the basement.
Glad you got your temps down! It is amazing what even a fan will do in a room too.