i just got this guy today and its my first! i did a lot of research but apparently not enough. the supplier tells me its a Vulgaris and it should only get about a foot long so i figured that would be perfect for my 75g. now i read if its what the supplier tells me its is, its going to get up to 3 feet! ive read that suppliers often give wrong names so from the pictures im able to take now with the octopus just getting use to the tank, can someone take a guess of what it is? its mantle is about the size of a ping pong ball and its legs are about 5-8 inch's... as time goes on and it becomes more use to the tank i will be able to provide better pictures. if anyone can help me out it would be much appreciated!