We have 2 Hermanns and are planning for their pens, separate of course. Since we live in the Desert this will be quite the project, to keep Humidity levels high. Our plan is to create a very humid substrate with lots of plants and grasses to help accomplish this. Are their some "Standard" plants we should include? Is there any good mixes of seeds we can plant? We already have Filaree growing in abundance and was planning to seed some of the bare spots with seeds specific to the Hermanns. Would a Tortoise Forage Mix be sufficient? Thank you in advance for your help.