Ok so some of you may have seen my cuttle fish thread and im still gunna get a s. bandensis. But after i get it and think im up to it i want to get a 75 gal. and get an octo. I really like the briareus so what do u know about this species. From wat ive read its nocturnal but will often change its habits to a more diurnal life in captivity. Do u know how big they get, how long they live, how active they are, what kind of substrate, do they try to escape like other kinds, wat temp should i keep them at for a long life? All that stuff and watever else u know. Also ive read that some people will put a shrimp or crab in a empty jelly jar so that the octo unscrews the lid to get to the crab or shrimp. Is this ok to do. Dont most jelly jars have metal lids which could pollute the water?