I've helped care for two, but really couldn't add much. Everyone knows they are notorious for escaping, so I went to great lengths to contain them. One was the size of a plum tomato (head size) and crawled through 1/2" flexible tubing after removing the sponge and reducer to meet his demise. The other wound up on the wall about 5 feet from the floor after escaping from an acrylic octopus-proof tank. It never recovered and the guy who owned the tank and I never could find where it got free. So what I'd add is: they are even better at escaping or cramming themselves into small openings than you'd ever think! When it gets dark, they spend all their time hunting -which in the aquarium means compacting their bodies into places they don't belong.
A
LFS just had one come in as a hitchhiker and I am really freakin' tempted. I have an empty 55, cycled, with
LR, and a running filter system. They're asking $60 for a hitchhiker, and I'd have to really 'pod proof it, but they are amazing creatures when you have one behind glass.
Maybe I should try cuttlefish?
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