Variations in albino silver arowanas?

[gourami guru]

So I have some questions on albino silver arowanas. They seem to have huge variations in color. I've seen some all white some white, with a yellow back and yellow in the tail, and some all yellow. I also see some arowanas on the webs being sold as gold albino silver arowanas claiming they will be the solid yellow type. I'm wondering what causes these variations? Are they all the same and just change color due to carotene, backround color, tanning with uv light? Or are these actual line bred color morphs?

 

[Deadliestviper7]

True albinos will have red to pinkish eyes and have no or almost no pigment.
Blue eyes or black/grey pigment often indicates a leucistic fish (partial color loss, not technically albino).
Xanthic fish are not albino but show lots of yellow/golden pigment.