so my new octo is either very aggressive or very playful? Thoughts? If I come to the tank or close to it he starts going to where I am at... I put a finger against the glass he strikes at it. I have been using a feeding stick but he keeps attacking it and won't let go. I try to pull it away and today he picked up 2 almost football sized rocks with. Himself pulling against me and wouldn't let go. I can't open the lid of the tank for 1 second without him trying to go straight out. I was going to add more rock and sand but I don't think he will let me. I know some of you touch them and what not... I touch my sting ray and shark, but no way in hell would I put my hand near this dude. Is this normal behavior? If he stretches all the way out he is long, tip to tip is just over 18" when sprawled. I'm a nun be so maybe he is normal, but he kinda seems like he wants to eat my face lol.