Weird title, but not really sure what to call it. A lot of us reefers go on vacation once in awhile. Over the past couple of months, I've noticed things going wrong when people are out. So it kind of freaks me out when I have vacations planned this year. For myself, I really don't have any close friends that have a clue about a reef tank. So I'm trying to think of other people in my position. I guess the concept is, maybe we can help babysit each other's tank while someone is away. I'm pretty sure there probably has to be a trust relationship, but I think that can be built over time. Does something like this already exist?