high water temp

Hi All, Hope all is well with everyone. I'm new to reef tanks, but I do care for 2 freshwater tanks. I'm currently cycling my reef tank. It's a Red Sea Max E260 (has a rear sump with 2 return pumps and skimmer with a pump as well). I've been having some trouble with the temperature of my tank...

my return pump is usually set to turn off over night but I forgot to rest the time after shutting everything down to clean and reorganize my tank before adding new coral and fish. Any who, the return pump stayed on over night and over heated the tank to about 85F. My leopard wrasse seems super...

I have a two story house with a 14 gallon biocube in my one year old sons room. During the summer, it gets warmer up there and last summer I seen the temp reach 85 in the tank. What's the best way to cool the tank down other than adding a $400 chiller?