Hi all, Just wanted to give an update on our octopus. Previous threads below http://www.tonmo.com/forums/showthread.php?19941-Advice-for-species-selection http://www.tonmo.com/forums/showthread.php?20035-Live-aquaria-indo-id-please We got her at the beginning of April, so it has been a bit over one month so far. We named her Heidi because she hides so well (my five year old daughter's idea :) ) From what I can see she is a full grown female aculeatus. She shares a tank with 3 cleaner shrimp, some muscles, and large and small snails. She hasn't bothered any of these as far as I can tell, even when the shrimp share her food. She has hunted down and eaten all of the shore crabs we added with her though, even the tiny 1/2 inch ones. She lives deep inside a large piece of very porous live rock and can stick a tentacle out of just about any hole she wants. We have a bag of 30-50 shrimp from the grocery store. We offer her one just about every day, but she usually stays in her rock and only comes out every other day. Sometimes she is outside waiting for us on feeding days. She usually eats 1/2-3/4 of the shrimp at a time. We have seen some really great behaviors out of her including tenting over a rock and rapidly sticking her tentacles in all of the holes trying to flush out food. Bunches of copepods scurry out when she does this. There is one behavior that I have not figured out yet. She comes up to the glass or sits on her rock and sticks one or two tentacles out horizontally and then vertically over and over. I feel like she's trying to tell me the tank isn't level or something Here is a utube link to a clip of that http://www.youtube.com/watch?v=1MAMoqU0HUw This is her out on the cleaner magnet. That is a large mag float for size perspective that she is sitting on. http://www.youtube.com/user/FlightyMail#p/a/u/1/1PLtEJiDWpg Here she goes for the food and takes it stick and all. I was trying to get her to hang out in one of her bottles so I could photograph her underside while she ate, but she had other ideas today. http://www.youtube.com/watch?v=uJwW-PgbINw Tiny closeup clip of her settling in to eat http://www.youtube.com/watch?v=xma6gCjMEfE Would love to hear what you guys think and I can post other vids or photos if you want them. I have a neet one of her interacting with a shrimp that I'll try to find.