What kind of heater are you using?
I have a Fluval Edge and am looking for as small a heater as I can get. I bought one of the flat type that are easy to hide, but I HATE that they have no thermostat, and I can not just set it, calibrate it, and forget it. I have seen the posts where someone is getting an Asian heater and a converter and cutting his tank up to fit it in the filter, but I am not really into all those extra steps.
So.. What are you guys using in your Nano's, what size is it? Is it easy to hide? Does it have a thermostat? etc etc?
Thanks for the help.