No L number for the Ancistrus sp. 'Super Rot'. It does not breed true and will throw normal color fry so it is probably a hybrid of different species. Some fake ones use L144/L144a with color enhanced food. It was originated from Germany and the best colored ones are still from Germany. People in USA are crossing them with whatever that looks yellowish to orangeish and turning it in sought of a Frankenstein experiment. I typically steer clear from all these color forms like green, chocolate, calico, red, and all shades in between. I also avoid long-fin of anything as they are hybrid as well.