Only way to get some quality fish is to selective breeding but farmers will charge premium price for those.
Well it's definitely not a platinum as platinums are man-made selectively bred fish. The one on the first page appears to be a xanthic. Like I said in the other thread, I believe yours are just stressed out. If they were platinum (even though they aren't since they appear WC) they wouldn't have visible stripes, they aren't xanthic, because a xanthic Bichir has noticeable yellow.