How long does it take a bimac to reach it's full size. I've had The Pope for a few weeks now. Right now he's about the size of a grape, so I know he's still fairly young. Thanks.

Well, mine is about 6 months old and his mantle is about 7 inches or so in diamter. From tip to tip the bimac is about 24 inches or so and still growing.

There are too many varients to give an accurate idea to you but at a typical tank and typical octopus its somewhere between 8 and 12 months.....

but that's open for debate :)