In article ,
says...
I am thinking of getting a aquarium, at least 50 gallons. Are their any
places to get good deals on aquariums? Also, with a average room temp
of 80, what kind of chiller would be needed to have a temp of 60 in the
aquarium? How much would this cost?

As for the tank you can get a 55 gallon setup for $152 US at walmart,
this includes heater(although it sounds like you don't want one), filter
(not the best but not too bad), and lights, along with a few other
little things(thermometer, water conditioner, net). As for the chiller,
I keep tropicals so I can't help you there. Hope this helps.

Josh