I set up a 55 gal for my snake a bout 4 months ago and have had no problems.
He has been having clean, once piece sheds (I do bump up the humidity with spraying during that time).
The tank runs a consistent 70 to 80 degrees and around 50% humidity all the time without doing anything (I use aspen now instead of the Repti Bark in the pictures).
Belly temp on warm side runs at 90 degrees as measured by a temp gun.
I covered the glass tank with wood on all sides except the front.
The space between the glass and the wood acts as an insulating barrier (and looks good).
I cut two holes in the top which each have a CHE sitting on a metal grate.
There is a large UTH under the tank that is set up to a Ranco T-stat.
The T-stat is actually wired to a power strip so that anything plugged into the strip (UTH & CHE's) run at the set temp.
I also put a wooden floor grate on top that I can open and close to adjust air flow and humidity.
It took a couple bucks and some time, but I have not had a problem with a 55 gal despite what a lot of people say.
There are lots of places to hide...lots of plants and branches, etc. and my snake has been healthy and happy.
I should mention that my snake is about 1.5 years old...so not a juvie...but not an adult.
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