Above are a few of my baby bristlies…about 1 month after leaving the nest.
Two good summaries of how to breed Ancistrus (Bristlenose Plecos):
http://www.plecofanatics.com/forum/archive/index.php/index.php?t-4244.html
http://www.fishchannel.com/fish-exclusives/aquarium-fish-international/bushy-nose-pleco.aspx
Some good information on helping to distinguish gender in Ancistrus spp.
http://www.planetcatfish.com/forum/viewtopic.php?f=5&t=13299&start=0
The following interview inspired me to try my hand at breeding Bristlenoses. It provides a good overview of the process:
http://www.petfishtalk.com/interviews/breeding_ancistrus/breeding_ancistrus.htm