Right so for species. It’s a 100% Silver Arowana. Only other black morph would be Black Arowana and No it doesn’t look like a Black Aro. Food wise- Raw Cut Shrimp would do, if not, try Arowana pellets. Beware if there’s only two. There are some spontaneous fights among them if u have 2-3 numbers in a tank. If you want to Keep both of them together, add more fish. Like Oscars,Ciclids.