Thanks to friends that posted and helped me about my topic. But to my researches my females are Ancistrus sp. Rio Ucayali. And this is photo of my male
I think with this pic it is impossible to ID this ancistrus. The same applies to the pics of your females.
Most of the picture of this species that you can find in the internet might show different species.
the pictures in your two threads are of rather poor quality. On the photo here all one can really say is that it's a male Ancistrus. But I don't see any hints that your females and your male are different species. Thus said, I don't think you females are A. spec. Rio Ucayali. Coloration is wrong, and there seems to be a striped pattern in the fins, which Rio Ucayalis don't have.
I don't see anything that says you don't have A. cf. cirrhosus, but there are still loads of other possible species. The common brown BN is just the most probable. Definite ID might not be possible, even with good pictures. But with the pictures at hand it's impossible.
