thinking about new tank setup

[Nicksplosion]

so i was thinking of setting up a 55-100 gallon tank in my basement for my native fish. i have some crappie, 2 sunnys, a small ock/shadow bass, and like 5 bullhead cats. keep in mind that all of these fish are under 8" and will be going into a pond so bear with me on this
ok so this is what i wanted to know
my basement is cold and damp, would a tank be ok down there? would i need a heater in the winter?
also could i get a couple more sunnys under 6" if i did get a 55g?
thanks

 

[cqu1g]

you would probably be fine without a heater but im not sure

 

[haynchinook334]

you'll be alright, i would use the heater and keep the temp at 65 dagrees in the winter. and add a fan for fresh air.

 

[Nicksplosion]

thanks.
also i have seen many people with larger tanks on cinder blocks, is this fine if you do not care about the look of it?

 

[andyjs]

It would probably be a good idea to get a layer of styrofoam between the tank and cinder blocks, but otherwise it should be fine on that size tank

 

[YOOPER]

It would probably be a good idea to get a layer of styrofoam between the tank and cinder blocks

Second that. How cold does it get in the basement during winter?

 

[xFLEAxx]

going for the ghetto look?