Hi, new to this forum. Our octopus has started to act really strange lately. The water quality is fine, nothing out of the ordinary there. But the Octopus doesn't seem to be able to crawl across rocks, the bottom of the tank etc, in the way it used to. Instead of gliding across the tank, the octopus seems to get caught in forwards somersaults, rolling over itself and seeming to lose orientation. Help?! Can anyone shed some light on this situation? We've had the octopus for just over a year now... could it be some form of octopus dementia?