L90 would do fine as long as its 13-15" max. Most of the ones you find are in the 2-3" range and grow painfully slow like most panaques. So you could keep it for many many years. Snookn21 (john) tends to get huge 12"+ L95's, I have had my eye on one of those beasts for awhile but haven't pulled the trigger. This would be a good option if u don't want to wait for you mini monster to grow. Large L14 goldy's pop up pretty often as well. It really depends on what type of pleco's you like. I'm more partial to the panaques myself, so I'm a little biased I guess. I know you don't want to hear this, but if I was you, and I had that tank, and I wanted pleco's...I wouldn't get a big one or two, i'd get a group of 8-10 L134's. They stay smaller but are by far the most comical fish I have ever owned. Whatever you decide keep us updated!
Josh
