thai micro crabs

Just a few pictures of my new Thai micro Crabs. Right now they are pretty much alone minus 3 Olive Nerites and 1 Ramshorn snail. 20L Black Blasting Sand 2 Sponge Filters Cholla Wood Wood Log??? Clay pots 2 Shrimp Shelters

I purchased some Christmas Moss 3 days ago and to my surprise I found two little hitchhikers in it. They are Thai Micro Crabs, they're about the size of a dime and fully aquatic. I have seen them only a couple times out and about but seem to hide most of the time. They're still pretty cute...