I got a .5 inch versicolor sling 6 days ago and it seemed to be doing fine until I found it on the ground this morning. I posted on reddit and someone suggested that my substrate might be too moist and I needed more ventilation holes. The substrate isn't very wet but I decided to get dryer substrate in there and try to get more holes drilled. When I tried to get the sling out I noticed it can't hardly walk at all and moves its legs crazy and tumbles on its side. What's going on?

