To help with climbing, you can pull out the rubber tube and scratch up the plaster a bit. Needle nose pliers will do the trick.
I've also heard of people putting a small piece of string or twine to help with this. Mine seem to do fine with whatever brand tubing Mack uses.
Currently kept species
L. neoniger, P. occidentalis, C. modoc, C. novaeboracensis, C. vicinus, T. immigrans, A. occidentalis, S. molesta, P. imparis, M. kennedyi, M semirufus, F. pacifica, P. californica, M. ergatogyna.
Previously kept species
T. rugatulus, B. depilis.
Looking for
Myrmecocystus pyramicus, Myrmecocystus testaceus
Pheidole creightoni, Pheidole inquilina, Crematogaster coarctata, Crematogaster mutans
My youtube channel. My ant Etsy store - Millennium Ants