Maybe a nice BTA would be a better choice - a BTA can "roam" as it finds a spot that suits it among your rockwork. That might lead it to the upper reaches of your tank, closer to the light.
For an LTA, not so much choice - it stays in and on the substrate (sand). It needs light and food to come down to the bottom, and I think your tank is what, 24" deep? It's a bit of a job for PCs to penetrate well, from what I've read and IME.
Also, BTAs are rumoured to be hardier, and more forgiving. Maybe you could find one of those really cool "Rose" BTAs.
(Quinn - was enjoying your posts in the Anemones & Clownfishes forum at RC earlier. What a hoot.)