Not as big into CA's as I used to be but that Argentea is a really good looking fish. A lot of people don't grow them out until adulthood. It's been a while since a picture of good sized adult was posted. Hope you keep this guy/gal around to see the full beauty of an adult, they are hard to beat in the looks category. GL
Found myself 3 Pearsei yesterday, no luck finding bocourti local. Range in size from about 3" ish to 6" ish they were in a 20g in the lfs.. not happy at all. Hopefully today when the lights come on they will start showing some colour. They appear much happier than they were..