I have a 14 gallon biocube the temperature has gotten all the way to 84. I bought a fan that i pointed towards the open food shute. This does drop the temperature down to 74. Is this the best way i can cool it off? I could buy a Inkbird temp controller and have the fan hooked up to tun off when it hits 74 and turn on at 76 then keep my heater to trun on at 72 as a back up to keep temperature all in the same 4degrees.