I certainly hope I didn't dissuade you from pursuing an endli, as far as dels are concerned, depending on the size of your rays the dels may be just a tiny bit on the small side, just be sure to grow them out to a good size. As far as coloration it depends on WC or CB with CB you're more likely to see a more consistent green coloration. With WC you're more likely to find a larger amount of yellow speckling mixed with the green, though both certainly have the speckling. They'll also have a few vertical bars of black towards their rear, and on some really nice specimens you'll see the bars highlighted by yellow, which can be absolutely gorgeous. As always choose the one with the coloration you prefer, if you're able to.