Each legs is 6-8 inches, the body is 2-3 inches and has very small webbing between its legs but not to much.
The color does change to more of a "model" or "paste" white, with a slight texture change of raised bumps. However this is not form stress because it has been observed multiple times under normal resting conditions.
yeah he changes to that orange when i start taking pictures or he is about to snatch up a crab... he usually has a lot more white but i havnt really gotten a chance to get that color he changes almost instantly..
and he deffinatly is not affraid of me he loves to come out and play with the siphon tube when im doing water changes..... loves to pull the algae magnet off the glass and float on it and then hide it from me.