Chiller nescessary?

[allie_san]

I'm going to try my best to avoid setting up a chiller, doesn't sound pleasant for the people outside the tank ..so far its been okay, Im just afraid a heat wave will doom me. I cant set up a little air conditioner since all my windows are the crank open type.
I am running radions and vortex's however, no dc return though. Would a fan across the surface benefit even with leds?