Wow, I think I got a correct I.D.! woohoo!
A good search would probably be within the mantis forum, "smithi" and set it for at least a year.
Doc Roy said that G. Smithi were about his favorite for personality. With it's small size be careful with feeding any snails or crabs that are too large for it to finish and degrade water quality. There have been a few threads about feeding and I think diversity is best. I feed a variety of frozen shrimp, squid, mussels, crab, dried krill, and fish. Dr. Roy also supplements with Zoe or Selcon soaked into dried krill.
-Rogue