I got 6 Tomocichla tuba "Rio San Jose" babies and just love them. They are about 2 weeks old and they are about a half inch long. They can swim forever. I've got the sponge filter in their tank going like crazy and they love it. They are awesome looking with their little bumble bee pattern
Also, here's a shot of my Astatheros rhytisma. They are a great, relatively peaceful, sand sifter.