Any other inverts?

You could also try Micro Crab - Amarinus Lacustrus
 
I can't find much info on how the Micro crab and the Thai Micro crab are different.

I think a dwarf african clawed frog would definably go after shrimp. If not the adults, then definably the babies.
 
Thai Micro Crabs; Limnopilos naiyanetri <-- Try googling that.

I believe that 'Micro Crabs' and 'Thai Micro Crabs' are one in the same.
 
I think I definably want some once I have money again and once I get my 10 gallon set up for them.
 
AquariaCentral.com