Advertisement Put this millipede in my tank about 3 or 4 months ago, it immediately burrowed and I haven’t seen it since. Today I got curious as to why it never came back to the surface and looked at the bottom of the tank. It is against the glass so I can see it. Its a light brown color, so i cant tell if its dead or molted. Edit: She moved so shes not dead, so is she molting or just chilling at the bottom?