You know, I see more coral eating pests in LFS's and other reefers' systems than coming in on wild colonies. Everyone's passing them around.
That makes sense if you think about it. These pest organisms are kept in check in the wild via natural predators and the such but In our tanks most of those organisms aren't found and thus it is harder to eradicate a pest
20 Gallon SPS reef
29 Gallon FW "fat catfish" tank
20 Gallon Long Dart Frogs "Zig" and "Zag"