Hi This my first message on the forum. I and just about to start up my first Octopus tank here in the UK and have been making some enquires at my LFS on availability of an octopus. Now I have been told the only type they can supply is a Californian Octupus I an not sure of the latin name. Does anybody have any experience with this type I have read on line their fully grown mantle is a maximum of 4 inches. Are they totally nocturnal??? Any assistance would be great. Cheers Darren Tank Spec will be 24"x24"x24"