Agreed...deep blue is where they belong. Make sure if your friend is insistent about this, that he is well informed on their care and requirement. There is a website for cephlapods and their requirements. Short lived creatures in captivity..And before any cuttlefish or octopi owners get their dander up, i am just stating that I believe they should be left in the ocean as well as certain types of fish and inverts too.IMO.
