So I am in the process of researching ATO's and wanted to see if anyone knows if there is an ATO that can be set up on a schedule? For instance, if I only wanted it to run from 5pm-10pm (when I am home)? I hear so many horror stories around ATO's flooding peoples floors and do not want that to happen. I can't image that much would evaporate in a day. I would think that it can wait till end of day to check to see if water needs to be replenished. Maybe this is bad idea I don't know. Still learning when it comes to saltwater tanks. Any advice would be nice.