The breed I had my lack of success with was a regular old common hypostamus plecostamus, same as the monster guys we try to keep people from putting in 10 gallon tanks.... (mine was going in 72 gallons, along with an albino tiger oscar and albino cory cats... finally had to go with a regular, colored common pleco). Anything other than common plecos are very hard to come by here, and very expensive. The only non-common pleco I've ever had experience with is the Queen Arabesque, and it set me back $30, versus $4.95 for a common of similar size. I've never seen a bristlenose up-close-and-personal, because nobody sells them here. (At least, not any of the stores I care to buy from...)
Wish I lived in Callie, seems they've got a lot nicer selection of fish where you are than the backwoods stores around here....