Normal
I do that with the tiny little slings, like 1/4" or less. I have a water dish in the LP's home and i mist the side it's on to "fill" it. It's really in there for when it grows a bit bigger and i won't need to mist the side. My B. Vagans didn't get a water dish until his last molt and now he's just over 1/2" and has a dish. Until he molted i also misted his wall. It was neat to see him drink from the water droplets on the wall.