I have a ceramic heat emitter that has to stay IN the tank, it's an 80 gallon tall so there wasn't an easier way to do it. Mine has a cage like this
http://www.exo-terra.com/images/shared/ ... lo_use.jpg around it, and I've started looking for some sort of pool mesh to wrap around because crabs climb all over it. They HAVE climbed the the metal cage part, but either I fetch them or they get off. It's tilted down at an angle in the corner. I've never had anyone get hurt, burned or shell cracked from climbing around it, and I avoid spraying that side, I either spray the soil, water up the shells or pour water in the spot right under where the bulb is.
For humidity, I have a mosspit with pillow moss and eco earth, two pools (tupperware dishes) two small water bowls by the food dish, and I soak all of my fake plants and vines with water. I also spray the roof down so that the water drips off slowly. The substrate is 8 inches at the lowest point, a mic of EE and sand for the first inch and the rest is just sand. The soil on that end gets dry quickly, but i check it weekly and pour water where it's dry.
I haven't had any issues with lid cracking, warping or burning with it. The lid is warm where the heater sits under it, but not flexible. I have NO idea what my lid is made of
![Embarassed :oops:](./images/smilies/icon_redface.gif)
. I'm going to search the Home depo website and see if i can find out what it is, but the rest of the lid is some sort of plywood with the mystery material drilled into it. There's ventilation because the lid doesn't lay flat with the tank, can't find my measuring tape right now but it's a very small gap, it's been tested to be crab proof by my very own spidey crabs!
But I'll try to find what I used for my lid, my dad made it so I don't know. I got up and checked and there's no visible rust on the lamp except for the clamp part which is "sticky".
Foundddd it, it's this stuff.
http://www.homedepot.com/p/Unbranded-24 ... 5yc1vZbrdg It does crack easily, but my crack is because there was an investigating spidey crab on the roof when I was doing maintenance, I failed at carefully laying it on the floor, crab lived though!
But Tl;dr, Get a moss pit, suction cup vines and foliage, and keep the vines drippy and the moss moist. And spray the roof, but don't get it anywhere near the heat source. I blew up a heat bulb that way, most terrifying thing I've ever gone through
![Shocked :shock:](./images/smilies/icon_eek.gif)