Just wondering what I should be going by? I've heard that you should be feeding them items the same size as the thickest portion of the snake, 10-15%, 15-20% prey large enough to leave a bulge, 4-5 days, 5-7 days, 15-20% every two weeks, rat pups from 150-400 grams (chart), etc. I have him on rat pups currently and he's only gained 4g since the last time he ate (7 days ago). Am I wrong in assuming that seems low? I was wondering if I should be upping him to weaned rats and maybe small rats around 400 grams with a 7 day feed time? Thanks in advance.