I have a hide in the custom tank I made for my red tail "Max" I made a fake tree trunk with a extra strong limb for him to come out on and drape himself on as well as other branches. I made the hide in the corner of the tank so I can move a blind and I can see in the hide from the side to make sure all is ok.

When I had a normal tank "Max" didn't use the hide as much, but now that he has the custom tree hide is hangs out in it and on the branch just like he would do in the wild.