isn't the L supposed to refer to like.. what was it? Loricaridae? So that each number is assigned to each individual species within the loricaridae.. um... family? I'm new to this pleco stuff.Actually if you get two different bloodline F1's it still makes an F2, even if you breed a F1 with a WC it will still be F2 since it is the second generation of the F1.
The pleco L# is just a number given to the pleco.
ooo... just re-read this! noticed I didn't answer your question at all. bristlenoses don't have a specific L# because there are many kinds. Basically, if you're looking for a Bristlenose, you're looking for an ancistrus catfish. check out planetcatfish.com, they've got all kinds of info to try to sort out the various plecos.I'm wondering that too. What is L* in bristlenose?