I have an 80 gal. tank and every summer i have a hard time keeping the temperature down. I have tried several fans for the sump which helps to evaporate my water even faster without much help to the temp. I asked my fish guy about chillers and he said that the cheepest one would be $700. That is more than my tank, filter, and base cost. My fish guy said to look on some forums and see what i come up with. so here i am. any good ideas? Thanks for any help.