does anyone know the difference between the nano version and the regular version of the tunze ato's? I have a 60 gallon cube with +/- 55 (including sump) gallons of TWV. Do you think the nano version would do the job?
The difference is that the nano doesn't have the IR sensor....just a float switch....that's why the price difference. If you're stuck on Tunze, go with the "regular" version. Otherwise consider two float switch models that use the second switch as the safety.