This is the best care sheet I’ve found. Click on the pdf link to get the full document. I also recommend reading through the blog on the site: https://www.smug-bug.com/services
I can’t recommend zebra isopods (Armadillidium maculatum) enough! They are relatively cheap, very attractive, easy to...
To attract any insects, the key is to plant a wide variety of native plants. Native shrubs and bushes would provide good shelter for a mantis. Research what grows well in your area and head to some plant sales in the spring!
Probably fungus gnats. Reduce waterings to let the substrate dry out a bit. Mix Mosquito Bits into any future water you use to hydrate the setup. Also put yellow sticky traps near it.