So my dragons body is around 8" not including the tail. I've been feeding him 3/8 dubias and they seem way too small based on the amount he eats ( he will devour at least 10 and look for more) with a small salad. I was wondering if I should go to 1/2" or 5/8". I know to go by the space between their eyes but to me that seems relatively small. he needs more so im going to order some tonight