I am not sure about the coloring on his fins, I think it is fin rot. Here are some before and after shots. The first photos are from January 13, 2011 a day or two after I got him at my lfs. The second photos were taken today, February 1, 2011. I would love to hear your opinions :)
Also, Bellino has developed a bit of dark coloring on the end of tail. Is this just more marbling?
Here is a pic of Bellino: