@Wills
TY- I think I have about 75 of them now at various sizes. They weere the last breeding group I assembled in late 2019. It took about 1.5 years of growing before they began to spawn.
L236 is in odd fish. I personally do not think it will ever be a described species as it is a natural hybrid. This is why is lends itself to line breeding for more white. L236 are highly variable in appearance and tend to morph with time. So selecting more mature individuals which show a bit more white allows one to work at line breeding to achieve the "super" whites.
I never had the time, space nor inclination to try creating a line of super whites. But I do like how they look, especially in their prime. Except for zebras. all of the B&W Hypans from the Xingu I have worked with all tend to get less white with age eventually.