for all those who said it couldn't be done, for the past 2 weeks my Octopus Mercatoris, Vladimir, has been living peacefully with more than a few other species; 4 damselfish, a chocolate chip starfish, a sand sifting starfish, mushroom coral, a condylactus anemone, and multiple snails. i just wanted to document this, as i have been told by forum posts that this couldn't be done. on a different note, Vladimir, the 2 week old (i'm not sure his real age), purple (they camouflage) Merc. has been displaying some very weird habits. 1st- there is a piece of liverock in my tank that has several holes in it: by holes i mean several nickel sized passageways in the rock that all connect at a center chamber (almost like swiss cheese). immediately he established that rock as his den. the first day i got him, i didn't feed him, so he ate a snail in the tank and used it's shell as a cork, to block the one of the 3 holes so that the fish couldn't bother him and that the light couldn't get to him. when i started feeding him, the next day, he used 2 live snails for the other 2 holes, placing their feet up so that they couldn't escape. smart right? another weird thing i notice when i feed him, is that he he eats the entire fish, bones and all, and then shoots the bones out his siphon in tiny pieces. is this normal? and is this how he poops? anyway, in this post i just wanted to address common rumors while telling about Vladimir. although it might seem hard to respond to a post like this, i was hoping that the readers could not only adress my 2 concers but post their own weird octopus stories and experiences as well.