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[Joyride]

Anyone have any tips on finding or building an inexpensive chiller? My tank temp is up to 84 degrees today after a warm day here in SoCal. One option is to run the A/C all day when nobody's home, but that could add up really quickly, especially as summer is coming.

My tank is a 45gal cube-ish (24x24x18) with about 35 gallons of actual water, after sand and rocks. I'd like to keep the tank at about 78 degrees and don't think it's a great idea for the tank to fluctuate 6 (or possibly more degrees) on a warm day. If I do need a chiller, what size should I consider?

Any thoughts or suggestions?

Thanks!