As you can see, my russian tortoise has dug himself all the way to the bottom of the bin.The soil was about 3-4 inches but by the time he pushed all the dirt aside, he now is surrounded by 5 inches of dirt. Will he be able to make his way our of this, or is it best that I keep the depth of the soil to 1-2 inches? I realize I can always help him out, but if there is a way that I can avoid having to constantly bail him out I would love to know it.Sorry for all the posts; I just got him last night and am still learning the ropes.You guys are great; thanks.