I searched a bit and you can find ‘angel licorice’ used for anjunganensis in other places as well, – and anjunganensis have only red in the tail, but not as a band, but an overall colour. And they do have a very bright blue seam. You might compare with the images in our species gallery.
I never use sand, – and I think generally there is here an understanding that most sand will work against low ph. I cannot explain excatly the reason why 🙂 .. I use mostly leaves or a little peat or granules, or bare bottom, – but mostly lots of leaves (oak and beech)
I am glad to help, – hope someone with some experience though regarding the spots will come along 🙂