his mantle is about 1 1/2 inces so yeah he is a big boy for only beein' a month old! hes one of the more moody cuttles i have owned i think hes bipolar ha if he has a schedlued diet if i feed him mysis on his live food day he will refuse to eat it and he also likes romain i think thats kinda strange cuz tha friend i got him from told me that they like it so i tryed it with no confidence he would even touched and sure enough ma friend was rite i cant belive it ma cuttle is eating romain wow i never heard of such a thing but i guess he likes it cuz he eats it every time i serve it to him! if you guys have any more food ideas please let me kno cuz i wanna get him eating a varitey but not a scheduled one! thanx!