Yes, I plan to use an ATO. Probably a tunze since that seems to be the most reliable, but I am not attached to that at all, I haven't looked into ATO much other then that I need one.There is no other maintenance other than cleaning the cup. The air intake gets flushed when you lift the cup off if you leave it running during cleaning. Of course, like any other equipment, it benefits from a yearly cleaning. It likes a stable water level of 6-7". Do you not plan to use an ATO?

