They look good but are they shop bought?
If so they will have had pesticides and fertilizers used on them which could be harmful to the tort if he eats the leaves.
The advice is to wash roots, repot in chemical free soil and allow about a year for anything absorbed by the leaves to grow out.
Cuttings from known safe plants are better if you can get them.
If you sink the pots in the substrate they will be more stable and easier to swap in and out when they get nibbled and bulldozed. www.thetortoisetable.org.uk is a good guide to tort safe plants for food and enclosures.