arowana identification

Question
I was at LFS earlier today and I saw a 6 or seven inch rainbow arowana, or so the label said. The fish was a very dark silver with black fins and red/pinkish spots on the fins. When I got home I did some research on "rainbow arowanas" and found out that they are very rare and very expensive. The fish at the store was $120 so I don't doubt the expensive part. But I was able to find very little information on such a fish or even pictures so I'm not sure what kind of arowana it is. The store also had several silver arowanas and they all looked very different from the rainbow arowana. Perhaps someone could help me identify the fish? I didn't get a picture of it though.

Answer
It sounds to me to be an Asian Arowana, or perhaps a Red Arowana or a Super Red.  Could be a Red Tailed Golden ( http://images.brighthub.com/78/4/784C31D56A7A3A60BEE4069387D49CD1A0D04B5C_large.... )

I've done a search here, and you can look through the lists of images to see if the one you are looking for has popped up in there.  Research the page it appears on, if an image comes up and possibly, you might find an answer.  http://images.search.yahoo.com/search/images;_ylt=A2KJke50uUVN6BgAogOJzbkF?p=+ar...

I hope this helps. :)

Renee