Most of the Sac plant folks know about this already, but I've got some nice young adult Oryzias woworae that I bred this summer. For locals, it's $2 per fish, pickup in Davis or Sac.
These guys are about three-quarters of an inch long, and the males have a nice blue sheen. I'm seeing males chasing females and displaying, so I suspect they're almost ready to breed. They're peaceful, even with my adult fire shrimps.
Here's a pic of the ricefish, from the paper that described them last year. They're originally from Muna Island, near Sulawesi. My guys are identical.