We really want to get tropical fish but there's a problem. In the state we live in, it can get as high as low 40's °C in the summer. And worse, we don't have insulation installed in our house.
Would it get way too hot for the fish even without a heater?
When it gets too hot, could I even get a tank cooler for it?
Are fish tank coolers adjustable for temp?
Would it be possible without frying the fish?