Well my tank is in my restaurant. So there is absolutely no privacy. Which I am fine with. When I'm cleaning it or working on things, the employees or customers always want to know whats going on. I love answering their questions and helping people learn about aquarium life. I do have preventive measures, like a top on the tank. Locks on the cabinet doors. And everyone knows if they see someone banging on the glass we get to scold them. The employees have almost adopted the tank as their own. Although they don't help in anyway besides looking at it and occasionally using the magnetic cleaner, they really do care about it and let me know about every little thing they see. As far as other reefers. A lot of them have come to the restaurant to see it. Especially since our LFS in close by and he lets other reefers know about my tank. I invite all to see my setup and I listen to others opinions, but as we all know nobody knows your tank like you do.