Hey again, got your PM and email. Yea, there appear to be at least two differently-looking babies offered for sale, one is silver metallic, the other is grey of various shade. The one in your video is probably the darkest I've ever seen and is probably of the second kind.
But the key is that I, and probably we as a community, do not know what they will turn out like as adults! That's the problem. We don't know how
either will turn out as an adult, although, by default, we appear to assume that the metallic babies will remain metallic as they grow... yet, at this point for me it remains an assumption and I'd like to see a few keepers confirm that with baby-to-adult visuals.
BTW, post #8, Jibran talks about Enrico's dorados, says his were 3' and 4'2":
https://www.monsterfishkeepers.com/forums/threads/rare-dorado-catfish.659335/
Also, in this thread are pics from Superlaz and his dourada that he grew to 16".
post #16 by Herman shows a grey one:
https://www.monsterfishkeepers.com/forums/threads/same-fish.681720/page-2#post-7676101
Post #9 by Herman shows he knows more than me, that's why it always pays to ask the community at large:
https://www.monsterfishkeepers.com/forums/threads/same-fish.681720/
Post #8 by Lightsout shows a grey one too:
https://www.monsterfishkeepers.com/forums/threads/same-fish.681720/
My posts #13 and #17 show that only a year ago I learned from Herman of the two different-looking dourada babies:
https://www.monsterfishkeepers.com/forums/threads/same-fish.681720/page-2
https://www.monsterfishkeepers.com/...ver-juruense-piraiba-tiger-shovelnose.669320/ OP shows the alleged "Nanay river dorado catfish" (or what I believe others market as "White dorado catfish") that may be white-metallic. So this may be a third kind that looks different when a baby at least.
HTH.
Viktor