Quote Originally Posted by JLC View Post
Of the axanthic lines, VPI holds their colors the best...but even they will brown out some over time. With axanthics, as I mentioned above, your best bet is to aim for a True Ghost (hypo axanthic).

The mature pewters I've seen turn more yellow with age. I've never seen one hold its youthful silvery hue....but of course, I've only ever seen a scant few and maybe there are some out there that hold their color.

I love the silvery/gray/black looks as well...and hope to someday work with axanthic combos to try and KEEP that look into adulthood.....but I don't believe you will find it with any simple single-gene or a two-gene co-dom combo.
So, in short, there aren't any known morphs that retain their black/silver/grey look into adulthood?