I'm wondering too, and we go on vacation for 2 weeks or more at a time. My mom knows how to take care of my betta tank, but I'd like to know before I start a SW
tank -- how do you arrange for care when you're gone for a while? I think the automatic feeder would be the least of my worries...I would worry about the calcium and magnesium and alkalinity getting out of balance. I don't think my mom would like to deal with that. Maybe an aquarium service?