Who Gives A Fish Forums

Just like the title says. My older bro's heading back from the city, so I checked out what's available online and man, I stumbled upon these tiny crabs - I'm hooked. Been reading a bunch of articles, but I'd love to hear about your experiences with them.

Also came across Pandaka pygmea, and I'm kinda tempted to set up a nano tank - wondering if it's possible to keep them together with the crabs.