Well I received my Hummelincki from reefscavengers.com early today after I received a DOA. the one I received looks pretty healthy and relatively young. I drip acclimated it for just over two hours. At first it was not happy about acclimating. He was desperately trying to climb out of the bag and I was desperately trying to keep it in the bag. I tried rubbing the back of his arms and that only made him more mad and he would grab my finger and start to pull it close to him. Twice throughout the acclimation he put on this display with his skin where for a split second he would flash exactly half his body brown. After I added him to my tank he found a nice cave in the rocks and hid. I couldn't see him for a while so I decided to place an emerald crab right in front of the cave. After about ten minutes the crab surprisingly did not move, the octopus came out and ate him. Unfortunately I have not come up with a name yet but I will. Here are some pictures and a video. The size of his mantle looks like it is probably about 1 1/2 inches but I am not really sure yet. He was packed in a much bigger bag with much more water than the previous DOA. Does the coloration look normal for a newly introduced octopus?