Wow, fry? Shipped dry, and that cold? That's a true survivor. I was expecting some cherry shrimp to make the trip, but a fish... that's something.
Tank looks great! How does the water compare to Marina water?
Amazing, right? It seems to be swimming around just fine. Do you think it is an Endler? It is mostly transparent with a black-ish upper body.
The new tap water is a good bit softer with a lower PH.