I thought I would post some pics of my Allardi pair, as often Allardi juvenilles will be sold as chrysogaster. I have even had discussions with very eminent importers who disagree with me on this. I think an importers view is if its sold to them as Chrysogaster then that's what they sell it as.
Here's a couple of shots of my pair I bought in January (sold as Chrysogaster). I immediately recognised them as Allardi but the importer disagreed.
You can see the female caudal is more yellow than white and the male has alot of black in the caudal similar to a Chrysogaster. Now fast forward 5 months and look at the difference in both fishes appearance.
You can now see the female is more mature and the caudal has significantly more white than yellow, more in keeping with what you would normally see in adult female Allardi. The male has also changed colouration particularly along his back which has transformed from brown, through an olivey green to more of an orange. They have also developed a blueish hue to their stripes.
I am still looking for a pair of Chrysogasters and trying to get them direct from Mauritius through an importer who has a contact with a collector there. Until then I hope this pair will spawn in the next month or so. Not as valuable as gasters, but still stunning examples of Allardi in my opinion.