I have a customer that purchased an Octopus from me. I have to say that I manage a Reef Speciality store, but we do not keep Octopus' in stock. He purchased a common red octopus and took it home. At which point he added it to the octopus setup he had waiting for this little guy. It did OK for the first few hours. Then in the middle of the night he checked on the octopus and found him on the glass and he was white. At which point he removed the guy from the tank to examine him. The octopus changed to a sandy color when he left the water and stayed this color when returned to the tank a minute later. But he did not move after this point. The customer also pointed out that the underside of the legs had a slight pink tinge. He had a squid that turned pink when it passed a few years back. The truly sad part of this tale is the customer then placed the octopus in the refridgerator in the morning, thinking it had passed on. I am not convinced that the little guy had passed. As I understand it the color changes are an upper brain function and the animal would still need to be alive for this to happen. As well as clinging onto the glass (where the customer first found him). I have to say this customer does seem to know what he is doing in the setup up of a marine tank. He may have limited knowledge on Octopus' though. I know little about the guys myself. I am in search of anything pretaining to this situation. Was the Octopus alive when he was placed in the cooler? What are the sleeping patterns for the common Octopus? If anyone can lend a learned head to this matter, I would be eternally grateful.