Yes I have had mine over a year now and have picked up and saved some information on them.
The crab is a Pom-Pom crab (Lybia Tesselatta). They are kind of elusive so it is good to get a picture when they are out and about. They find their food by moving their anemones across the substrates and rocks in the aquarium and taking whatever they “mop” up with the anemones. They do best in nano-reefs, where they are most easily fed, seen, and able to avoid predators. They do not need strong lighting, and neither do their anemones. Their anemones die without them, as they are exclusive to the Pom-pom Crab. The only way to really replace the nems as far as I know is to add another crab with theirs still intact... They'll then share and split them until they both have two.