Hi, I'm posting this here because I think it generally falls under this catagory. Basically I've gotten the aquarium I work at to install one way glass to view our octopus tank. There is a gap between the one way glass and the tank ( to eliminate any vibrations that may be caused by banging on the window). Our octopus can see herself but not see the customers looking at her.I've been monitoring the activity of our common to see if she is hiding more or being more active after the change in viewing for our customers. At the moment it seems that her behaviour is a positive one and that she spends a large amount of time roaming around the tank doing what she wants. What I was wondering was has anybody undertaken studys of this nature before in regards to activity after implementing such actions. Obviously behaviour wise there are the standard text of mesenger and hanlon but I was wondering if there were more up to date papers on this subject. Anyone like to comment?