I would ditch the lamp and stick with the UTH ( under tank heater) Also having a bright light on you 24/7 could get annoying as for the little one I would let him settle in I kept my first 2 bps in 55 gal tanks (separately of course) They did very well I only switched to a rack due to lack of space for larger collection. Although I didnt put them in a 55 from the start i moved them from 10gals to 20 longs to the 55's dont know if that would make a difference though. Oh also add more stuff to your tank poor snake is probably too scared to move since its soo far from one hide to another go buy some fake plants and clutter it up a bit.