There are 6 adults, and now 6 fry in a 20L. It has a turnover rate of 20X, with an Odyssea CFS4, Eheim 2213 and Maxi-Jet 400 powerhead.
They are in their own tank, but they share it with Cherry shrimp and MTS. I feed them bloodworms, daphnia, Hikari Carnivore, NLS Community, Brine Shrimp pellets and NLS H2O pellets. They condition the best on the bloodworms, but I have to feed them fry-friendly food now, so mostly pellets since fry will choke on bloodworms.
If you're interested I can post how I got them to spawn.