Once they were in bags side-by-side, I got my first really good look at them. Lillian is smaller with fewer cirri (she's about 3"), while Phillip is about a half inch longer and a little bigger around with noticeably more cirri (keep in mind that since they can't be sexed with any degree of certainty, I'm just going with the one with less hair being female).
Lillian (Lil) is a pretty pink and dark grey, while Phillip (Phil) is darker. Once they were put into the 55g, they started showing different personalities. Phil is quite the busybody, wandering all over the tank, swimming through the shrubbery, constantly on the move. Lil sank like a stone and turned into a rock.
She's moved about a bit, but very, very slowly. However, within 5 minutes of being put in the tank, she'd eaten a guppy fry already! So far, she's had three and nearly had a ghost shrimp as well. She hasn't been chasing any, but any that come near her are fair game. 
The LFS said they'd been eating frozen worms, krill, mysis shrimp, etc., so feeding shouldn't be too much of a problem. Planning on feeding them mainly frozen shell-on shrimp as a staple, with other things occasionally too.
Now to convince hubby to move the sofa and TV in there and the kids furniture and TV in here, so I can stay in there and watch them and Justin, the palembang.
Phil has finally found his cave and is now snuggled up in there. Lil, silly bugger that she is, is actually laying ON TOP of her cave! 