If you are asking about otos, they are otocinclus, dwarf suckermouth catfish. They are very cute, very small little algae eaters that like to be in groups of 3 or more and don't add a lot to the bioload.
swit said:thank you
josh yes I am adding more I'm thinking about getting some otocinclus catfish or maybe ghost shrimp not to sure yet
Viper said:What fish are they? Very nice tank by the way.
Oh lol. yeah if you look at the caption, he said he has 6 neon tetras