Thank you for the advice. I have kept a few octopi over the past 7-8 months. Currently I have a blue ring in a 30gal cube, and a 14gal oceanic biocube prepped and awaiting a juvenile ?????? Recently had a vulgaris, but a room mate goofed on a water change (RIP) when I was out of town. The common seemed the friendliest and most social of the 3 I had (the third being a bali).
14G isn't big enough for ANY octopus! I know you say for a juv, but you'd do better to get a bigger tank prepped (50G for a Bimac) and just put the octi into it staight away, too much transferring is extremely stressful for an octopus.
BTW just curious, does your roommate know how toxic a BR is????