Folks, if you've recently upgraded or renewed your annual club membership but it's still not active, please reach out to the BOD or a moderator. The PayPal system has a slight bug which it doesn't allow it to activate the account on it's own.
Just curious, have you tried using a fan at all?
I was able to lower my temp a couple of degrees with a couple small computer fans blowing across the top of the tank. (90 gallon, brought the temp down 3 deg.)
Might be a cheaper option until you can find a chiller.
The evaporation from the...