here are two Hybrids with Black Bar Endler:
This fish carrys the MBAG ( Moscow Blue Additional Gen). MBAG creates the blue rump of the Moscow Blues. Sometimes it gets very dark, nearly black, so it ist often mixed up with Ni² (aka Tuxedo, Halfblack or HB). But everyone can differate both Genes. Tuxedo is not according to mood of the fish. If MBAGs are afraid they turns pale, the MBAG getting smoky.
A nearly roundtailed this Snakeskin Lace Black Bar Endler...nice!