Advertisement When I kept mine in the cube, it webbed on top of the substrate. When I transferred it and gave it much more substrate, it incorporated the substrate. So, I had the same T make one home all web, and the other incorporate the substrate He's been in this enclosure for about a month. You cant see from the picture but a tunnel goes right under the substrate and that's where it spends most of it's time. I think they are opportunists. They will use what is given to them, and base their web home on what is provided for them.