My tank is a commercial tank and with the chiller will stay 50-65 degrees depending on what I set the thermostat.  I normally keep it 52 or 53 all the time.  I can store 150-200 suckers for a month or so in it if need be.  Chillers are not cheap but they do keep your bait nice.  I also have photos of the whole setup in my photo gallery here but don't know how to get them in the post here.

http://www.aquaticeco.com...s/Chillers/79/0/Chillers

Captain Brad Durick
Brad Durick Outdoors LLC