Yes I did keep an O'briarius. Her name was Egor not Casper. She hatched out tiny little babies, that were so adorable, but alas...I lost them all very quickly. Not sure what had happened, but it was unexpected. I actually turned it down cause I was still unsure if Twizzler was still in the tank. Generally, crabs do not eat/kill an octopus unless they are sick or weak. I'm hoping she's guarding eggs. I still think she was a dwarf.