Sam,
It turns out, the Loricariids that came in marked L-208s, that looked a lot like L-147's are actually L-387's!(so confusing) This is a really cool find. Thanks so much for pointing them out to me. Their dentition gave them away as a Peckoltia sp. I've got them settled into a 20 long with many hiding places and a cave. The lighting in the 20 long is low, and the conditions are "blackwater" from the previous tenants. I'm going to keep these guys on a twice-weekly water change regimen.
These guys are good eaters. So far, they'll eat almost anything, including sponge filters and each other. I needed to get them out of the holding tank.
Amanda