If it's an adult, you can put the orchid or fir bark over top the coir. In my opinion, this gives the best of both worlds.
And, don't forget to hand pack it lol
@ZEROPILOT can help for a proper size enclosure.
I would cover the enclosure with fencing so the dog can't get into it.
As for flooding, either bring him inside when it rains or make the enclosure higher than the yard
Misters or sprinklers would be a better way to get the humidity up. Set them...
You will have to build an enclosure as you won't be able to find a proper one at the pet store. You can try looking for a raised garden bed container to use, a large animal stock watering tank to use or a pop up greenhouse to use, all to be used indoors
Some people will use the ceramic heat emitter like you have. But place it right by the light of it isn't. They bask in the wild by the sun so they look for lighted heat to bask in
No. The uvb light you have doesn't get warm enough.
You need a 65 watt incandescent flood bulb or regular incandescent lamp bulb for basking. It has to make the basking area reach temps of 95-100
Be sure if he doesn't have a uvb light that you get the tube florescent kind not any of the cheap coil type, not the halogen and not a mercury vapor bulb.
Do not ask the store employees for recommendations as they will sell you all the bad stuff.
Line the inside of the enclosure with plastic. Many use a shower curtain liner.
Others lay linoleum tiles or sheets down on the floor portion under the substrate
A lot of changes are needed ASAP
First stop all the fruit, it's very bad for his gut.
Second he needs a much bigger enclosure ASAP, a 4x8 minimum
He needs proper substrate, orchid or fir bark.
A bigger clay saucer water dish he can fit into.
A basking area with an incandescent flood bulb that...
We need you to respond so we can help. Looks like your turtle has a fungus. Dry dock him and put athletes foot cream on the areas.
Google search how to dry dock a turtle.
OMG, I totally freaked out when I seen that baby on all that fruit. I wanted to reach in and remove it and scream NO, he can't have that. Lol.
Then I seen some of the fruit under the second picture.
Beautiful grow up, great job.