I don't think me telling "the space between Rex's eyes" to a cricket provider would be something they could gauge, haha. Rex is about 7 inches long, around 4 or 5 weeks old. He seems to like eating the larger of the batch that come in my orders of pinheads, I'm guessing about 3/8 " size. Does this sound about right? I wanna know the right measurement cuz I'm gonna start buying in bulk, Rex is causing me to go to Petco 2 or 3 times a week. and thats for 100 count bags lol.