I'm getting a new octopus tomorrow and can't decide what temperature to have the tank set at. Without a heater the tank is sitting right at 60F/15C. Local fish store is getting this animal by accident and doesn't really know where it's from. They are shipping it from Florida to Ohio but they could have imported it to Florida. So my basic question, what's the warmest a Vulgaris could tolerate and what's the coldest an Aculeatus would be happy with? Any thoughts on temperature would help, I'm sure this has been discussed but couldn't find much of a straight answer.