I have two albino tiger oscars. How consistent is their colour across the lenghts of their bodies usually? One of mine has some rather noticable variation, but I don't know if that's indicative of a problem. it's not -as bad- as shown in the picture, that's a lighting trick, but you can see there is a difference.
http://members.shaw.ca/anonomoose/variation.jpg
and just for a hoot, here's something different