last night when i came home (1:30am ish) i noticed the octo was out and about in the tank. the first time i had really seen it out exploring. i also noticed the serpent star in the tank had taken up residence in the octos normal den. the serpent has been hanging around the den for a while now. im assuming because of the amount of food that is usually around that area (crabs, krill, ect). anyways, i figured they would sort it out by morning but no go. the octo is in a new den and the serpent is still in her(?) old one. i tried to get the serpent out of the den and i also picked up the rock the octo was in the morning to make sure she (again, ?) was in there. what are the chances the octo will go back to its old den? and i havent scarred it for life by picking up the rock have i? its old den was perfect. you could see it from the front of the tank. and it was a great spot to hand feed and such. i feel really bad for the serpent stealing her den and for disturbing her this morning. focus with no light doesnt really work so well.