Vivarium invertebrates?

[NinjaMask]

I'm looking for a good sized, relatively long lived (2-5+ years) invert to keep in a vivarium. Similar to a dart frog setup but slightly smaller and less humid. The vivarium will be planted, and likely have some weak lighting at minimum. All suggestions are appreciated!

 

[Salmonsaladsandwich]

Amblypygids or assassins wouldn't be too destructive in a planted tank. (A lot of other things will burrow, eat plants or smother everything with silk.)

 

[Acro]

Vampire Crabs.