I have a 2.5-ft, adult ball python that is currently housed in a 40-gal tank, 36" x 18" x 16". He seems a little cramped in there, and as a new snake parent, I unfortunately installed the UTH mat incorrectly -- installation instructions were horrible, thought the sensor went under the substrate, over the glass. And there is some heat damage to the lid from a previous owner, got the heating lamp too close. So I'm looking to get a new tank, make it a "Taj Mahal" for him. Is an 85 gal tank (48" x 24" x 18") too big? Looking at a model from Repti-Zoo. There is also an in-between model from Zilla at 48" x 18" x 18". Exo-Terra doesn't appear to make anything that big. I've seen in this forum that Focus-Cubed tops are popular as Exo-Terra tank lid replacements since they reduce airflow to improve humidity. But they don't seem to have anything for Repti-Zoo or Zilla. Maybe I could just cut some plexiglass to fit over the lid of at least one end? I also am going to *correctly* install a new UTH (live and learn) as well as set up a better moist hide for him with sphagnum moss. Currently he just has a couple of log hides along with a stick and his water bowl. One hide in particular is his favorite, but he's kinda outgrown it and doesn't quite fit all the way, pushes it up a little when he's coiled up inside, so I'll try to get him a couple of bigger hides. I already have a Wacool fogging humidifier but wondering if I'd need another one for a tank that large. I'll probably put in some digital thermometers for hot and cold sides, but I also frequently use a laser thermostat to measure surface temps. Any other recommendations?