I am planning a 30 gallon mercatoris community tank, and I can't find any information on what happens if you take several wild caught mercatoris adults and put them in a tank together. My goal is to breed them, so I wonder how other people have started captive bred populations. Do they mix well only as juveniles and when introduced all together, like with cichlids? Do you have to get a male and female and carefully monitor them, like with other totally non-social octopuses? I haven't even bought the first piece of equipment, so this is part of a very long term planning process, I just figured this was a question that needed to be answered for me. By the way I bought the cephalopod care book and it's excellent! There is so much information to sort through that it's helpful to have a reference since trying to piece everything together off the internet is a challenge. Nice pictures in it too. Thanks for any replies. Also, is mercatoris a tricky species to acclimate? That's the one step out of everything that seems like the most nerve wracking and potentially traumatic for the octopus.