Do you see how terrible you are? In your own words, you can't tell the difference between silver and black aro, because you have never kept black aro before. As for silver, you ONLY collecting platinum and snow. That's why you know the difference between snow, platinum, and albino. Do you collect albino? If you don't, how can you tell the difference between albino to platinum or snow? Do you keep xanthic or a xanthic? If you don't, how can you dismiss another member axanthic or xanthic as common, low cost fish? Btw, what's the difference between platinum and snow? Care to explain/elaborate? What you've posted so far have clarified only one thing: you don't know what you're talking about!